You can share a bluetooth internet connection with your PC and share the Internet with your mobile phone.
"The instructions detailed here are for the Panasonic X800 which has almost the same hardware specifications as the Nokia 6600. Configurations detailed here should work just as well on any Series 60, Symbian OS 7.0 phones (Nokia 3230, 6260, 6600, 6620, 6670, 7610. Panasonic X800, X700. Samsung SGH-D710 ). You may need to to play around with the GNUBOX program for other models of phones."
The rest of the article is
here.