That's curious, because I was told that inter-project mobility was a big strength of Google, first by the friend who referred me in, then by my recruiter, and then both my managers (I switched projects/managers on my second day, since my original one didn't really need another engineer) said that if it wasn't a good fit there were lots of other places within the company where my skills would be useful and I might be happy. It's a moot point for now, since I like my project and am excited to get going on it, though I'm kinda curious what'll happen if/when I outgrow it.
Teams and managers are very different there. I was told they liked it for people to stay on projects for at least 18 months, and that it's difficult to get a transfer with less time than that. That was the company line from my very first project there, in 2004, when it was still a relatively small company. A lot of it is just luck of the draw with your initial allotment there. Glad you found something that you enjoy though.
