http://www.inspirel.com/vera/
http://sourceforge.net/projects/gcgreatcode/
https://code.google.com/p/cppanalyse/ Nothing yet :|
http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml
Check it out...
Bonus: http://bbyidx.com/
http://www.yourkit.com/features/index.jsp