Ryan said:

This is a complete slam-dunk…but the biggest reason wasn’t mentioned.

What is the massive, gaping hole in the Google ecosystem at present? At least in everywhere but Brazil (Orkut)?

A social platform.

Yes, Twitter pales in comparison to Facebook. let’s think about how many people use those *two* platforms in complementary ways…plugging Twitter into the Google ecosystem MAY just give Google an “in” to Facebook’s platform. And I would argue that Twitter is already becoming more social than MySpace, which is a website (*not* a platform) that has no idea what is presently is or wants to become.