Yeah, I checked around, and everything is sold out. The PSP is selling well around here too, because I couldn't find any in stores around here either.
So, the DS is more for RPGs and Platformers, and the PSP is more for shooter and racing games? curse my lack of money...
Yes, that's correct. The PSP has great handheld FPS games. The DS is pretty lacking in that category, but MP:H is decent. The PSP also has a ton of very well designed racers ranging from both simulation style to arcade style. The DS has Mario Kart as a great racing game, but that's about it, and it doesn't havea good sim style game.
The DS has Mario and the first good Sonic and Megaman games in years as great platformers. It also has a ridiculous amount of RPGs (Square Enix has 19 games out and in production for the DS), and some great action-adventures like Zelda PH. Truthfully you'll only get the best of both worlds if you own both.