Yes, the Cocoa port will address this problem, and it's actually
pretty far along. Pretty much all of the wxPython demo is running
using it, although as it's less mature there are surely some uncaught
bugs.
Hopefully sometime in the near future after wx 2.9.0 is released, I'll
have some time to help Robin prepare a Cocoa release on OS X. IMHO
it's about ready for some wider testing. :-)