Without the browser cart, the wireless only works by connecting to other DS's or to a Nintendo Kiosk. The browser's a bit wonky and slow, and I probably wouldn't recommend it to someone who has a different option for quick, portable internet access (like a cell phone or such), but I'm glad I have it, for me.

There are lots of great games that are stylus-intensive. I'm a big fan of Wario Ware: Touched in particular.