I have a Sony Ericsson with T-Mobile service, and had to use it with my iMac G3 with USB bluetooth adapter a while back. I had to wait about a month and a half before I could get DSL or a phone line or anything installed at my place, but had heard all about unlimited use from T-Mobile for just ten bucks a month, yada yada. Well, I signed up for it, and it was pretty slow and flaky, I'd say it felt like using AOL about five or six years ago with a 14kbs modem. Lots of disconnects. BUT, at the end of the month when I got my phone bill, they'd over charged me $1,800 BUCKS! Somehow in the account they hadn't gotten the unlimited usage, and were charging me like I was using the internet ON my phone, and the rate was PER MB! Anyways, got that straightened out. Ended up using the phone with my new eMac with built in BT a few months later for a couple days. Setup on the computer was pretty easy, the biggest problem was getting transferred all around T-Mobile tech support and customer service to get my phone account setup and enabled. Nobody knew what the heck I was talking about. The only possible way I could see myself using it again was if I had an iBook or PowerBook and needed the 'net WHILE I was driving around or something, otherwise it's technically pretty cool, sounds really neat, made my nerd level go up a few notches, but it's SO SLOW it isn't worth the trouble. Good luck!