I tried following the step of adding --enable-aero-peek-tabs to the Chrome shortcut, which worked back when I was using Windows 7, but no go for Windows 8. Any ideas?
Yes, it shows per window aero peek rather than per tab which Opera, IE and Firefox do. Even Safari 5.1.7 has aero peek, so in my personal opinion, in native implementation on Windows OS, Chrome is not doing good job like their Metro browser.