TV out + the ability to wifi into your PS3 (which can be hooked up to your home network) makes me excited about the new PSP. That way, if your friends have wifi, you should be able to play a movie / music / pictures from your home network on a TV anywhere that has wifi. I have neither, so I'm not completely sure this is possible. I think this interaction between the PSP and PS3 will help Sony gain popularity.
ubercomp's comments