Microsoft Research has now added the ability to animate GIF-based pictures via their recently launched Cliplets development app due to many requests from its users.
Six Windows 10 features not available to Insiders... yet
All the latest on Windows 10 build 10041
windows 10 technical preview
Check out our community forums!
Microsoft wants to turn Android phones into Windows 10 phones
LG Windows Phone mock-up
How to get Cortana working outside of the US in preview build 10041