But twice as safe as most open source code ...

http://www.theregister.co.uk/2010/11/02/android_security/

,----
| Security analysts at Coverity reckon the Android kernel is riddled with
| security holes, though they still rate it as twice as good as most
| open-source projects.
| 
| Taking the source code from the HTC Incredible, Coverity found .47
| defects per 1,000 lines of code, compared with an industry average of 1
| per 1,000. That totalled 359 defects, with 88 of those being high-risk
| items such as memory corruption, memory leaks and uninitialised
| variables. Buut Coverity won't be providing any details until the end of
| the year.
`----


Now this in itself isnt a worry as much as the unvetted apps which
people download daily with NO idea of what they can access.