Would you be able to give us some info on the "rooting" process? Or a link to that process? And explain the value of doing that? Thanx.
You can find rooting and other upgrade information for the Viewsonic G at http://forum.android...sonic-g-tablet/. That site has lots of good info for many different tablets (there are other good sites as well). There have been some pretty good deals (<$300) on that tablet recently.
Rooting (i.e., becoming the root or "superuser", terms common to the Linux OS) allows you to tinker with the filesystem and do things that you may not accomplish otherwise.
I have a Nook Color, which is a pretty good ebook reader with a couple of added features (the next upgrade should add a bunch more). By rooting, I was able to add the Android Market with a very large number of applications and turn it into a usable tablet computer.
You can also run advanced software versions and apps from a micro-SD card without having to root the device itself. I have Cyanogen Mod 7 (based on Android 2.3) running that way (dual boot) and have also tried Honeycomb (Android 3.0). Both of these are oriented more toward tablets instead of smart phones.
bobnielsen has given you great info, the site I usually go to is XDA. Gtab on XDA here They have IMO a little more info then Android Central but both equal quality.
I have rooted my Evo about 7 months ago so I had a little knowledge of what I needed to and compaired to most devices the Gtab is SIMPLE to root.