Good points, but here I disagree.
It's become blindingly obvious that portable gaming is going to be dominated by the model that iOS and android are pioneering, and Sony is positioning the Vita to go after that market, and hard- where nintendo isn't.
Look at the philosophy with game distribution: Sony pushed hard for day one digital downloads on all games (where they didn't with the PSPgo), and is discounting them over retail. Keep in mind also that PSN has been developed substantially since the PS3 launched and is FULL of games playable on Vita *and* PS3, and available cheaply. Hell, Playstation Plus doles out games for *free* monthly, as long as you keep up the subscription- if you don't think that program was developed with an eye towards the $.99 games flooding the app store and android market, you're taking crazy pills.
The hardware is impressive, but there's a lot going on with the distribution and ecosystem that's been tooled specifically to compete with smartphones, and it's not just "more of the same".
From an interface perspective I agree, Sony's digital distribution capabilities are impressive.
However, as always the ultimate decider is software and I think there is still too much of an attempt by Sony simply to put their franchises in their core form on a portable platform. It's a bad case of console-itis. In a sense it's the same thing Sega did with the Nomad, only in a much more modern and practical form.
I don't necessarily mean that negatively either, the hardware is BEASTLY. It's just that I'm not sure it has the type of software geared specifically to appeal to portable gaming. Sony did great building a niche in the DS market because the PSP was inherently disruptive (as was the DS in different ways). The PSP went high end and it worked beautifully for them. Vita is also high end but it doesn't do anything really to change the established dynamic. The PSP was harmed because it was easy to pirate, but I also think it had the sense that it was trying to be a portable CONSOLE rather than a portable GAME system. They're different markets with different needs and tastes.