im not sure i believe that hummingbirds require gingerbread. i think its something other than that. as long as theres no more 2.1 phones coming out, i can believe that many will be only 1 version behind latest.
phone devices: AT&T Samsung Infuse 4G (SGH-i997) | HP TouchPad 32GB | AT&T Sony XPERIA X10a
My past phones: AT&T Dell Streak 5 | AT&T HTC Tilt 2 (Rhodium/Touch Pro 2/RHOD300) | AT&T HTC FUZE (Raphael/Touch Pro/RAPH110) | AT&T Samsung Blackjack (SGH-i607) | Sprint UTStarcom PPC6700 (HTC Apache)
My friend's and family's phones they make me fix for them: AT&T Samsung Galaxy S III (SGH-i747) | AT&T HTC One X | Verizon Samsung Galaxy Nexus (SCH-i515) | AT&T Apple iPhone 4