I'm having problems as well.  I get the message 'Wifi mode has failed on your phone.  Please use Bluetooth mode instead'.  I can usually get it to work immediately after a power-down and restart, but that is a pain!  Based on what little I've been able to find, I can only get my iPad to work in Bluetooth mode if I jailbreak it.  So unless I can find a fix before too long, I will either be rooting my bionic or jail breaking my iPad...