1) It's not a Game Boy.

2) The PSP is going to have to cost at least 50 bucks more. Probably more like 100 bucks more, though. On top of that, the PSP is little more than a portable PS2. What's the point in owning one unless you're really jazzed about playing Vice City on the go? The DS offers gaming design you simply can't get anywhere else. Hence the reason the $200 price tag makes perfect sense.

For a Nintendo handheld, the $200 pricetag is a little high, and in light of that, I would assume that it's going to cost reasonably less than Wal-Mart's quote. Never trust retail outlets on forecasted MSRP or release dates. They only rarely get it right.