I couldn't let this one go: "A) they will have thier act together and build a equal to Microsofts XNA tools for developers"
PS3 programming will never be XNA simple. And there isn't another company in the world that can do XNA.
Their XNA is LittleBigPlanet (level design game) and Home (where they will host 'gadget' level stuff). That's it, and Home customization on that level isn't coming in 2008.
This is the console that took months to adapt fl0w - XNA isn't happening. Harrison's speech about user content is pretty much going to mean Home and LBP.