1) PSP Minis already winning over iPhone devs | Game Development | News by Develop
Sony is seeing the beginnings of what it hopes is a vast migration of iPhone developers to PSPgo projects
During its Gamescom press conference, Sony revealed that its new Minis range – PSPgo games, sized under 100MB, sold cheap – has already courted enough small developers to create about 50 Mini-games by the end of the year.

2) Konami explains why Peace Walker is only for PSP
the latest Kojima Productions podcast, Sean Eyestone explained their decision to develop Metal Gear Solid: Peace Walker for the PSP:
“We want people to go out and socialize with other people. You know physically take your PSP with you, go to your friend’s house and hang out together. Of course we could have done co-op, maybe, on PS3 or something like that. But whenever you do online co-op, that actually, in a way, kind of discourages people from playing together.”...