If you've got a Slingbox connected to your TV and have been waiting to get your iPad involved, the time has finally come! SlingPlayer Mobile for iPad lets you view and control your TV over Wi-Fi or 3G for $30.
Unfortunately it's not a universal app, so you're looking at $60 if you want to Slingify both your iPad and your iPhone. But nevertheless, it's probably the slickest (if not the only) way to get all your boob tube offerings on your tablet. [iTunes]