Check the video out : )
The interface isn't as awesome as xbox 360 interface. This is just redone amped PSP interface.
The Music interface is very basic and i think it needs more depth and feature like having pc and ipod support like the xbox 360 has which makes it really easy to plug in your ipod or your friends ipod into the xbox 360 via a usb port. Also the music user interface is so much easier to use and its hassle free for xbox 360. Music player needs more depth in option and feature.
Having keyboard and mouse support is awesome i think and i hope they are usable ingame for FPS and RTS . but Microsoft can easily have Mouse support added in the next major XBOX live update. browser i don't really care but i do care about the online interface where you buy your virtual console content.
But Overall i am not impressed with Sony as they have had so much time to develop an awesome interface and all we get is a incremental updated psp interface that has keyboard and mouse support.
IT NEEDS MORE WORK SONY !! NO REHASH