I recently purchased a 350, 650, and a Kindle 3 for comparison. For all that I've read about the benefits/drawbacks of the 350 and 650, I don't think I've heard much about a couple things. Namely, the 350:
- has a slightly darker background color (doesn't affect text)
- has a sharper screen - text, pictures, everything
- is noticeably slower to operate, including screen refresh
The Kindle, for what it's worth in this Sony forum, is very similar to the 650 in background color and speed, but has much cleaner text despite being the same resolution screen. I think this has been discussed before elsewhere. Something to do with better font rendering.
Time has come to choose one, and I think it'll be the 350. I love the 650 for it's size and speed, but not it's pixelated display and high price. The Kindle is simply too big with that worthless keyboard, although I like it a lot too.
Anyway, I wonder if anyone cares to comment on these differences, especially how much slower the 350 is, which I've never heard before on here (and I've been lurking for weeks).