@GamesRadarJustinTowell: My main point about getting another DS before a DSI would simply be because I imagine the DS will become quite cheap once the DSI is on the market.
I don't know if Nintendo plans to fade it out or whatever.
A slightly larger and sharper screen would be nice though, no denying that :P
None of that really jumps out at me as any kind of important feature for a portable games console.
I expect these kind of gimmicky features from my phone, which has two cameras, MP3 playback and a web browser but the only thing I use, or want to use my DS for is playing games.
Being able to download games directly from the Shop might be useful but I think if my DS snuffs it I'll be buying another DS well before I buy a DSI.
Got Dark Sector after a friend recommend it but I've not played it yet.
Tomb Raider Anniversary is an awesome game that I think everyone should play, but I'm a TR fanboy :P