If you’d like to make calls from your iPad, check out the Truphone app, which allows iPad users to make calls over VoiP. Calls are free to other Truphone, Skype or Google Talk users, and are $.05/minute over telephone lines (cheaper if you sign up for the monthly plan).
Why would you want to make calls from your iPad? Well, maybe your iPhone died because you tried to do two things at once with it. Maybe you like feeling like a very tiny man. Whatever your reasoning, just the very fact that you can do this is kinda cool.
Here’s video of a man using his iPad as a giant iPhone off TechCrunch: