When I moved into my new apartment this month I noticed that the phone line outlet was on on opposite side of the apartment relative to my computer. Since I was using a Cat5 cable to connect before it would not be a viable solution in the new apartment. I ordered an Airport Extreme card for my Mac Pro, but in the meantime I had no method to connect to my wireless network. I did some googling and found that there is a way to use your iPhone as a wireless adapter. The software is called WSID and requires a jailbroken iPhone as well as some ssh knowhow. There is a readme file with instructions so if you can follow them then go for it. This little hack works well and kept me connected to the internet while I waited for my Airport Extreme card to arrive. Below is the link to the file, which is tiny by the way (13.5kb).