there is a possibility to use wpa2 with root certificate (PEAP) but its a bit ugly:

first you have to install the certificate you want to use via the certificate manager. After that you can follow the instructions at

http://www.internettablettalk.com/fo...7367#post61755

(Rtalian's entry)

to set your connection properties.

for me there was another glitch then:

I have to save my password in the connection properties, otherwise the authorization will not work.