2.1 is end of the line. No FroYo, no dalvik speedup, no Flash 10 (remember, the Hero was also touted as a 'full flash' phone). They literally did not get a year's worth of updates, even though it is sold on a two year contract. Their forums are mirrors of this one, with all the "I'll never buy a HTC again" rant threads. If we accept 2.1 as valid upgrades, then PR1.2 is a sign of proper support just as well (and for the record, PR1.2 did contain an Ovi Maps update, but the 'real' thing will be the Qt based next version which will be available in the Harmattan timeframe).