Flash for Android mobile devices is being discontinued, beginning with Android 4.1 — new installations of Flash to be disabled on August 15. Maybe this will hasten adoption of HTML5.
Adobe’s statement to developers:
HTML5 is now universally supported on major mobile devices, in some cases exclusively [...] that makes HTML5 the best solution for creating and deploying content in the browser across mobile platforms.
For a fascinating illustration of the trend towards mobile computing, check out the short video (28 sec) below showing the history of some popular computing platforms, starting in 1975 and running up to the present. It includes some oldies like the TRS-80, Amiga, Atari, NeXT and Apple II as well as the now familiar Windows PC, Mac, Android, iPhone and iPad.