First PSP and PlayStation Home Connectivity Details Revealed?
According to a roughly translated Japanese Web page (linked above), it has been announced that Namco Bandai's PSP sim game The Idol Master SP will offer some kind of connectivity with PlayStation Home.
To quote: From what we can make out from the article, it seems that during your play-through of Idol Master SP you unlock "rewards" for use in Home.
It also looks as though Home will import avatars from Idol Master judging from the picture
This is a step in the right direction, and hopefully we will see a lot more PSP/Home integration in the future.