However if you reserve one at GameStop, you can trade in your old DS for a $70 credit. $99.99 for a DSi might be worth it IMO.
- two cameras (one between the screens and one on the outside of the body)
- built in photo editing software
- downloadable software and games(like the iTunes app store)
- port for an SD card
- bigger screen (3.25")
- voice recorder and music player
- new web browser
On the downside, they have taken away the GBA port. So your old GBA games can't be used and other games that use the port (like Guitar Hero) are unusable.
I haven't decided if I'm getting one but since my old DS is worth $70 on a trade in, I might just do it..