Whichever fanboy is talking about it, it's absolutely true that Sony badly misjudged the OS to put on this. Vista might run borderline usably given 2Gb even with an N270 - but the simple fact of the matter is that you're trying to get Vista to run on something that basically has barely more grunt than a 6 year old ultraportable - only with more pixels to drive.
The fact that netbooks are new seems to be blinding people that we've taken a half-decade step back in power and a near-decade step back in many other features, to achieve a four-fifth price decrease. Only the Chinese build quality is current.
While many seem to be touting W7 as the saviour of the netbook, I think reality will dawn for many - that you cannot expect a current OS to run on gear that would, if it hadn't been regurgitated as a distraction for the downsized, be falling apart by now. Release W7 with then-current apps in 2010 will only run well on forthcoming Atoms - which gets us to maybe late 2005.
Sony have chosen to hop onboard this low-rent lipstick on a rancid pig bandwagon in the worst possible manner. The top-model P is outperformed by even my Core Solo'd (also Sony) UX's, a 1lb handportable from two years ago - and even these struggle to run Vista from time to time given the 1Gb memory limitation.
I've used the P for a bit and while it has typical Sony flagship build quality and a good deal of desirable sleekness, as well the primary reason for me not being remotely interested being the trackpoint... but sticking Sony-bloated Vista on a
PCG-TR1 is just plain ridiculous - and it's exactly what they're doing.