Wow, what an utter disappointment. It did boot fast (and logged directly into my google account, to show me ads), but on my high end machine there was a noticeable delay in typing and everything else. Even if that was some technical issue, ignoring it, it looked like a direct rip-off of a tabbed small "kiosk" distro I have seen, that worked much better.
Heck, I even created the functionally same thing with stripped ubuntu, with a startup command in the gnome config that started Seamonkey before it started xwindows. Booted just as fast. I use it all the time on my legacy very low end laptop (p3, 190kb ram), except unlike Android, when I simply close the Seamonkey, it completes the boot to a full os, with disk drives and everything.
oh, and its ugly. I have a Mac, a Vista, and linux I use all the time. I wouldn't put Android on my exwife's computer.