Kangal,

You may have mis-read some descriptions. From the links in the first post, the tablet bunason was looking at:
512MB memory, 4GB storage
touchscreen is resistive

I realize the S7 is more expensive, but you get the same 512MB memory, 8GB of storage (4GB more), same resistive screen technology. Plus you get GPS, the ability for phone calls and cellular data, and native access to the apps Market (no trickery involved).

The linked tablet does have a bigger battery, the S7 is user replaceable.

Size-wise, I can slip the S7 in my back pocket. Don't think you'll be able to do that with an 8" tablet, so it depends on your use case (I'd have preferred the resolution of the Galaxy Tab, but that's $600).

Depends on what bunason is looking for. I hadn't seen many mentions of the S7 on TMO, figured it was similar, with some additional features (for some additional money). Might be what he's looking for, might not.

I considered the G-Tablet, but decided against it. Too big, I wanted a 7" tablet not 10" (portability), no GPS, no native Market. The S7 with the new version of Maps works great for navigation, even without 3G data. I think it's a great compromise between phone size (3.5 -4") and a huge 10" tablet blocking half the dash or window.