DUN over Bluetooth
Currently I use Dial-up Networking over Bluetooth to connect my Windows 7 Laptop, Netbook and Nokia N810 tablet to my cell phone. Works great, and I don't even have to take the phone out of my pocket. Saves me from having to launch the phone's WiFi sharing app.
Can the iPad do the same? It supposedly has Bluetooth, so I can't see why it wouldn't.
If not, I could just launch the app to share my 3G connection over WiFi from my phone, but that's an extra step that would otherwise be unnecessary.
Dell Studio, Windows 7, 2 GB RAM