Flash on Android is definitely on par with Flash on the desktop, when it comes to security anyhow. Make sure to keep those installs up to date, and be wary of turning Flash on by default.

I wonder if this will have any impact on the Battle.net Mobile Authenticator on the Android platform. One of the markets that actively exploits Flash is the MMO gold farmers. Their main attack up till now has always been keyloggers on the PC of the player to snag their password. There has already been a few attacks on the authenticators too, this may make it worse.