Well, I used my pearl as DUN for the N800 once, when I first got the N800 it found the pearl, connected, paired and worked. The only change I had to make was changing the internet2.voicestream.com apn name to wap.voicestream.com (on t-mobile of course...) because the pearl cant access internet2 (at least mine cant) and it worked great, but only ONCE. when I disconnected that connection I never managed to connect to the pearl again. I think I might have gotten it to work for a brief period a second time by hard booting both devices (battery out) but I know it didnt stay connected for long, and when the Pearl (mine anyway) takes about 8 minutes to "reboot" this wasnt a good solution for me. So I gave up and bought a Nokia 6133 for $30.00 US and I use that when I need a cell connection to the internet. -John