bcpk,
On that same site, you should also check the graph of the original Touch Diamond and the original Touch. Then you'll see that HTC is very clearly improving their hardware with each passing year.
People will accuse me of all sorts for saying this, but as a prospective smartphone shopper, I think the real issue is Android simply isn't focused on playing audio and video at the moment. So none of the interface/features are really up to iPhone standards yet(which I think is the gold standard for seamless, responsive interface, if nothing else). It's time people put their minds to make something like that happen on Android, be it phones or a dedicated PMP.