its not under powered at all. nintendo intentionally dropped out of the console competitions this time to progress with inovation and so far its worked. everyones more hyped and interested in the WII than the PSII and the XBOX 360 combined.
The only so called issue I am aware of with it is the remote slipping out of you rhand. I saw some bs imge of a wii remote stuck in a tv chasis, apparently launched by a three year old.
1. No way could a 3 year old throw that hard
2. Its not intended for 3 year olds anyway lol
Altough I think nintendo are replacing wrist bands or somthing.
I know theres a supply problem. I went looking one for day regardless of this knowledge