PDAnet iPhone/Mac tethering application
OK, so there is a great iPhone application out there called PDAnet. This application lets you use your phone’s built-in 3G and Edge capabilities and, through a wifi network, allow your computer to use the aforementioned to connect to the internet. I’m not sure how often this will happen, but if I want to use my laptop in a coffee shop or other place sans internet, now I can.
Want to know how this works? Well, first you need a jailbroken iPhone. Get more info here.
After reading this, I sort of wish this post was about tether ball.