What's starting to worry me...
...is that Android's days are numbered.
iOS rules phones and tablets. Apple is eating into Microsoft's turf on the desktop. With iCloud their apps are starting to sync between the three.
The Windows 8 launch is making it clear that Microsoft is putting up a pretty good fight - SkyDrive provides sync, Metro and WP development is converging, and the desktop has huge (and existing) enterprise support.
Android is king of smartphones. There's no sync cohesive framework other than through individual apps - which makes sync fragmented, much like the OS is fragmented. Google, as has been mentioned by others (including some at Google), is good at building apps - at the expense of building out a platform. And a platform is, IMO, what's required to win in this game.
Android tablets have little traction. Chrome as an OS has even less traction. Enterprise support for smartphone, tablet and desktop is minimal.
Not a horse I'd back...