Dislike:
- MGS and RE not among the launch titles; only Kid Icarus seem to really show the capabilities of the console
- just one user-facing camera (3D chat not possible)
- (reportedly) not really that powerful: no antialiasing in 3D, less triangles per scene than PSP. Lots of games will probably have PSP-level visuals
- (reportedly) battery life doesn't match DS
- (most probably) no MP3/DivX playback
- (most probably) no built-in rumble despite rumours
- screen resolution could be better (Sharp's 800x480 3D screen could have been used). Also, would love 0.5-1 inch more
- ugly three-layered sandwich design
- no WarioWare game in works
- (according to Nintendo) would take long to crack it in order to allow homebrew
- stereoscopy without glasses, which can also be turned off
- slidepad
- built-in web browser
- videos showing off ported MT Framework
- (seemingly) there will be more mature/hardcore-gamer-oriented games than on DS