I have managed to get it working but I had to load the latest version of the Overcome custom RoM to do that. It is a great addition to the device, but it still has a bug in it when switching from front camera to rear camera that crashes the app.
A little confused by the inconsistent use of terminology used in the thread above. Is the app Google Talk or Google Voice (both are referenced in posts above). If Google Talk, can't find that on the market even though I am running 2.3.4 on my Sprint Galaxy Tab. So is that a side loaded and/or hacked apk or what? Where available for D/L?