The DS is a dream come true. The only real improvement i'd want is original GB functionality on it.
There are a ton of DS games i'm interested in and several i feel are must-owns.
My friend derek just ordered something that has a cart and a gba thing and holds up to 4GIGABYTES of data. he'll be able to "get" certain types of files that'll have him playing GBA, SNES, and DS games.
Did you know that Metroid Prime Hunters is only 47mb?
Originally i had a moral problem with this because i wanted to PURCHASE CoM, FF3, LoZ:PH, Castlevania: PoR and Trauma Center..but i realized that i'm a poor shit and Nintendo will STILL be getting all of the money the possibly can out of me because of the Wii and all of the hardware and software pertaining to it, so i'm considering getting one of them anyway.