GV Mobile +, the first Google Voice app for the iPhone, has been updated with support for the iPad.
GV Mobile + allows users of Google Voice to do the following with ease: ● picture messaging ● push notifications ● group messaging ● dial numbers via the iPhone address book, entering on the keypad, or choosing from the internal favorites ● send, retrieve, and delete SMS messages ● retrieve and delete recent call history ● playback and delete voicemails ● take calls from different phones other than your iPhone ● enable, disable, add, or delete the phones that Google Voice forwards calls to ● much, much more
What's New In This Version: ● iPad Support ● Fixed chronic crashing after update/extended use ● Minor tweaks to SMS view ● Fixed the delete and 0 button in Forward Calls To Add/Edit view
You can purchase GV Mobile + from the App Store for $2.99.
I've been using Talkatone on the iPad for a while. It also uses Google Voice to make calls from the iPad or iPhone.
Oops, I just realized that it's nit iPad native but it does work great regardless.