I think it'd be nice to see how people have taken advantage of these new features in their applications.
*Update* I decided to include applications that don't necessary incorporate new features of Windows 7 but may be tools/tweaks/utilities made for Windows 7. I've divided them into a few categories to make things easier to sift through.
Apps with Windows 7 core features (JumpLists, interactive/tabbed thumbnails, glass interface, displaying progress state in taskbar, etc)
General Purpose Applications *updated 11/10/2009*
7APL (Windows 7 Application Launcher) - [Screenshot, Screenshot 2, Screenshot 3, Screenshot 4, Video]
With jumplist support, interactive thumbnails, hot keys, application grouping/profiles, gadget mode, and more. Beta testers needed.
7stacks - [Screenshot, Screenshot 2, Screenshot 3, Screenshot 4]
Extends some functionality to the Superbar by allowing you create stacks.
AIMP - [N/A]
Integration to Win7 TaskBar, Simple Scheduler. Alternative link here
Astroburn Lite 1.1.0 - [Screenshot]
Shows progress bar states
c2i GMailNotifier - [Screenshot]
Integration with the Windows 7 taskbar
Connectify.me - [N/A] *new*
A handy utility that will make use of the Windows 7 virtual wifi feature.
EmEditor Professional 9.00 beta 2 - [N/A]
A text editor that supports JumpLists and progress bar states.
Gmail Notifier Plus - [Screenshot, Screenshot 2, Screenshot 3, Screenshot 4]
Windows 7-only Gmail notifier that will sit in the taskbar.
Google Chrome (build 18.104.22.168 or greater) - [Screenshot]
A web browser with JumpList support.
ImgBurn - [N/A]
Supports progress bar displayed in taskbar icon.
iTunes - [N/A]
Supports playback controls in thumbnail preview.
Jumplist Launcher - [Screenshot, Video]
Create your own JumpLists.
LameXP - [N/A]
Added experimental support for Windows 7 taskbar progress indicator and overlay icons.
LocalHostr Uploadr - [Screenshot]
Jumplist support, when uploading files progress bar appears in task bar icon.
Maxthon Browser 2.5.10 Beta2 - [N/A] *new*
Supports new Windows 7 features like task bar preview, jumplist, aero shake, multi touch (for touch screen) etc.
MediaMonkey 22.214.171.1249 RC1 - [Screenshot, Screenshot 2, Screenshot 3]
Full Windows 7 shell integration (interactive thumbnails, jumplists, and icon status).
MusicBee 1.1 RC1 - [Screenshot, Screenshot 2]
Windows 7 support including Aero-Peek and Jump-List support.
MyPhoneExplorer - [N/A]
Supports jump list and task button progress bar.
Paint.NET - [Screenshot]
Aero glass, jumplist support, and use of DirectWrite (instead of GDI) which gives even better performance and quality.
PowerArchiver - [Video]
Full Windows 7 support with jump lists, taskbar progress and taskbar icon overlays.
Proxy Switcher - [N/A]
Support for Windows 7, including Jumplists.
RSS for your taskbar - [Screenshot]
A taskbar RSS reader that implements interactive thumbnails.
Steam Client Beta - [Screenshot] *new*
Join the optional beta program for the Steam Client to download it (available in File-Settings). It provides jumplist support in Windows 7.
Taskbar Meters (CPU/Memory Usage) - [Screenshot, Screenshot 2, Screenshot 3] *new*
Quick access to Task Manager and the Resource Monitor to determine what's slowing down your computer. The update frequency and percentages that determine "yellow" and "red" states are configurable.
TeraCopy - [N/A]
Support for Windows 7 Explorer. Progress indicator in Windows 7 Taskbar.
Trillian Astra Beta - [N/A] *new*
The new Trillian Astra 4.1 beta has full Windows 7 integration now, including taskbar status and jumplists.
Ultramon 3.07 Beta - [N/A]
Extends the Superbar to a second monitor (no jumplist/pinning support yet implemented).
Windows 7 Firewall Control - [Screenshot, Screenshot 2, Screenshot 3]
Now with buttons in the thumbnail taskbar preview.
xrecode II - [N/A]
Win 7 Support for showing Progress in Taskbar.
Zune 4.0 Software - [N/A]
A great media player with support for JumpLists, mini-toolbar mode, and more.
Plugins/Extensions *updated 9/2/2009*
Messenger Plus! Live - [N/A]
Extension for Windows Live Messenger and integrates interactive tabbed thumbnail features.
win7shell plugin for Winamp - [Screenshot, Screenshot, Screenshot 3]
Adds JumpList + interactive thumbnail + progress bar (song progress) support to the popular media player Winamp.
Windows 7 Shell Integration plugin for foobar2000 - [Screenshot]
Adds JumpList + interactive thumbnail support.
Winfox - [Screenshot, Screenshot 2]
Adds JumpList to Firefox.
Commercial Applications (no free versions) *updated 9/3/2009*
DisplayFusion - [N/A]
Multi-monitor/wallpaper software. Only Pro (paid for) version supports Windows 7 Aero + thumbnail previews.
WinDVD 2010 - [N/A]
Moving up to the exciting new user experience of Windows 7? WinDVD Pro 2010 DVD software is ready and waiting. Optimized for the new operating system, it supports key Windows 7 features, including Windows Touch, Jumplists, and Taskbar integration.
Apps with little to no Windows 7 features (but still made with Windows 7 in mind)
Tools/Utilities *updated 9/23/2009*
File hash Checker - [Screenshot]
This simple tool will allow you to compute the MD5 and SHA1 hash of any file. Shows progress bar in icon.
Power Plan 7 - [N/A]
Power Plan Assistant is a smart power management application designed specifically for Windows 7.
Windows 7 RTM ISO Image Edition Switcher - [N/A]
Converts any edition of Windows 7 (in ISO format) to another edition (eg. Ultimate to Professional).
Tweak/Customization Applications *updated 11/10/2009*
7 Taskbar Tweaker - [Screenshot] *new*
Another app to tweak the taskbar.
Default Programs Editor - [Screenshot]
It is a context menu editor, an autoplay editor, and default programs association editor.
Desktop Peek Tweak - [Screenshot]
This is a quick utility to adjust Desktop Peek delay time when you hover the mouse over the appropriate button on the desktop.
Library Icon Changer - [Screenshot] *new*
Tool for easy change of the Windows 7 Library Icon
Login Screen Rotator - [Screenshot]
Configurable app which allows you to cycle through login background screens.
Taskbar Overlord - [N/A]
Allows you to tweak Windows 7 taskbar.
Tweaks Logon Changer (for Windows 7) - [Screenshot]
Provides an easy way to customize the logon screen background with just a few clicks.
Ultimate Windows Tweaker - [Screenshot]
Is a freeware Tweak UI Utility for tweaking and optimizing Windows 7 & Windows Vista, 32-bit & 64-bit.
Windows 7 Logon Background Changer - [Screenshot]
Windows 7 Logon Background Changer is a free open source (source code available soon) software that let you change the wallpaper of the Windows 7 login screen.
XQDC X-Setup Pro - [N/A]
It has a multitude of tweaks available and supports many versions of Windows, including Windows 7.
Got any other apps to share? Post a reply. Also, if any links in this list do not work or you find out anything is inaccurate, just let me know and I'll update it.
Edited by Se7enVII, 11 November 2009 - 05:40. Reason: Title updated