Best Free Video Chat App For IPad 2?

I recently purchased iPad 2 and have been searching for a decent, free app that lets you dial and receive video calls on the iPad 2. I've tried the iPhone version of Skype on iPad, and it works fine. however, you have to zoom 2x to get the full picture. I searched for free apps, but not able to decide which offers better experience. Also, I wish to know whether Google Talk chat will be made available for iPad?