jQuery Mobile Alpha 3 increases browser support to include Firefox Mobile, Opera Mobile / Mini. Improvements reported on support for iOS, Android, BlackBerry 6, and Palm WebOS. Moreover, the Ajax navigation system has been …deeply re-factored to improve performance and handle more edge cases. This includes event handling for click, submit, and hashchange, all of the base tag management, path management, active link class handling, etc. and better support for dialogs.
Individuals have noted some breaking changes relative to early revs.