Gameloft impressed many PlayBook gamers with the solid 9mm HD game for only $0.99. There is no official change log but Don pointed out (via Mobistack) that it seems to fix the autosave issues where it lost your progress after the app closed. Other than that the game is pretty slick and highly recommended.
Check out 9mm HD in App World for $0.99 or take a peak at this cross platform trailer to see what I mean:
