It's not a matter of being too big. It's a matter of unbridled, undisciplined expansion.
Unconfirmed reports also indicate Google has acquired the staff of Apple's cafeteria at their Cupertino campus for $10 million. "Nothing to see here" said Eric Schmidt of Google, "we're just looking for new ways to expand our Android platform." Schmidt was giggling too hard for further comment.
I wouldn't be surprised.