Is there another company that is updating 4 year old phones? Is there an Android phone released with 2.2 that can run 4.2? I think Apple's backwards compatibility track record is the best there is, but here's to hoping for better!
Not exactly a Google update, but the open source nature of Android makes efforts like CyanogenMod possible. They support many old devices.
My Motorola Defy came with 2.1 Eclair. Runs 4.2 as of now, thanks to Cyanogen. I keep it because it's built like a tank; all phones should have IP67 certification.
