Bells and whistles aside, the one thing that could potentially sour my enthusiasm is cost. Pricing is still unknown for Sony's Next Generation Portable (NGP), though it'll likely be more expensive than Nintendo's 3DS, which is expected to retail for $250. That gives me pause, because as cool as the technology seems, I'm not sure I'm ready to pay roughly the same amount for portable gaming (hardware and software) than I do to play on the PC, Xbox 360, or PS3. In NGP's case, if it's just a matter of bringing PC and console-quality experiences to smaller platform, I expect I'd still gravitate to play the version I can experience on my TV, where I can get 10x the screen real-estate.
In other words, I'm cautiously optimistic, with a dash of wallet-panic.