Note that those numbers are talking about GPU performance only... PS3 may have a potential advantage in the CPU department assuming developers can tap the raw processing power that is there. GPU<->CPU interactions may also be more beneficial on PS3, but with NDA's on the Sony side I'm not sure if we'll ever get a definitive answer to that. And the RSX is a very capable processor in its own right, with advantages over the Xenos chip in some areas (and vice versa).
PS3 also adds hi-def movie player, standard HDD, open Linux, and some networking capabilities... albeit at a higher price.
Mind you, the 360 is a great machine and I'm enjoying the hell out of mine, but I don't think you can look at the graphics spec list above and declare that MS released the superior console spec wise a year earlier than Sony.
For the money, maybe... for being a year earlier and still cheaper... I'm starting to agree. But what will really matter in the end is the games, meaning the deals MS and Sony can sign with developers and the talent of the guys actually utilizing the power to produce games.
I'm basing my opinion on the PS3 games we have seen so far (both released and in development), not those numbers. Those numbers are pretty much useless.
The thing is, multiplatform games look worse and run at a lower framerate on PS3 at this point. I don't know if that will change in the future, but the fact that this is even the case is pretty disappointing. The PS3 exclusive games we have seen so far look worse overall compared to what we are seeing on 360 IMO. PS3 seems to be playing catch up. If the system had a clear edge hardware-wise, I would have attributed this situation to a lack of familiarity with the hardware, but that doesn't seem to be the main source of the problem.
I didn't expect they would release a year later with a system that seems to be bandwidth limited, has less memory (available), an inferior GPU and so on. Seems pretty underwhelming to say the least.
HDD aside, all those features you mention are not game related and some of them are adding a lot to the manufacturing cost of the system. I'd rather get a better (game) system for that extra cost than a "hi-def movie player".
All in all, it's still a pretty powerful system, and who knows, maybe it actually has the edge visually after all it's said and done. But right now, with Sony holding back as far as showing PS3 games in development, it's a pretty disappointing picture.
Or maybe I'm just wrong and all is fine a dandy, and PS3 will blow us away during the coming years. It wouldn't be the first time.