Currently the only ROM on the Viewsonic Gtablet that supports network location services is an early "pre beta" CyanogenMod 7 (Gingerbread source based).
VEGAn, TnT (Stock) and TnT-lite do not support it.
I'm running TnT Lite 4.40 and at first glance the location was working. When I launched Google Maps, it found my approximate location (via wifi no doubt). After a few days of customizing and adding apps, I noticed the it no longer works.
Is there any fix for this? I would like it to work as it did; I'm not interested in adding other apps to mask or fake my location, I can do that.