The only thing I could find on TGP is from early Nov, and the gut shots there do not match the Sonzera amp shown on the GC website:
http://www.thegearpage.net/board/index.php?posts/22926746/
vs
http://www.guitarcenter.com/PRS/Sonzera-20-Watt-Combo.gc
(look at the control layout, back panel, etc. Even for a prototype it is way wrong).
EDIT: and on further inspection, it looks like they say "...om 50" and "...ustom 30" in the far left. The controls look like DG Custom 30 and 50 layout too, so my bet is they are just variations of those.
If there is another more recent photo showing the actual new Sonzera amp internals, I'd be interested.
I might pick up a 20W combo - be a good grab-and-go amp, if not too heavy - claims to be 42lbs, which is probably OK. Price seems right too.