Sony means business:
Sony plans to make PSP iTunes compatible, and is adding a movie and music section to the playstation store. This is a very samrt move; many people may not buy PSPs becuase they already have many iTunes songs. This will allow Sony to take some more of the iPod's marketshare.
Skype is being introuced. Internet radio is being introduced.
It will soon be possible to listen to your own music while playing in-game. This is pretty cool, but similar to MGS4, it gives developers leeway to make crap music, which is too bad. (I have green hill zones "dreams come true" song on my psp, which would be cool to listen to while playing sonic rivals if I ever get it.)
It will be possible to talk on skype while playing games.
Sony also says they are going to put 25 more classic PS1 games in Playstation store, as well as 5 original PSP games, with a new PSP game each month. Some new first party games are also announced.
This is very big news for PSP fans. PSP will likely stay at 60k a week in Japan at this rate, and should see a resurgence in America, as this should make the PSP more popular with college men.