I don't get it with you people.
Firstly, you bemoan the PSP claiming that it will be the end of 2D gaming. Then, you go on to say that it'll be crushed by an even more powerful GameBoy after released.
I mean, one second you're defending 2D gaming and then you don't care...
Second, you're all brushing aside PSP like it's another N-Gage. We're talking about SONY here. You know, the ones who demolished Nintendo and has sold the most consoles ever? The most POPULAR console makers on the planet? PlayStation is a respected brandname ALREADY; it doesn't need to market itself like N-Gage.
Thirdly, why SHOULD Nintendo be anywhere near releasing the next GBA? And for that matter, why would it be any more powerful than PSP? These are PROJECTED specifications - none of these units ACTUALLY exist yet. These are the type of specs that it WILL have, but that doesn't mean they wont get better.
Finally, you say that proprietary media is always more expensive, and use this as an example as to why Sony's will be more expensive than Nintendos. You just overlooked the fact that Nintendo use their OWN proprietary media, which is NOTORIOUSLY expensive: cartridges.