Looking at the RatpadzGS (GS = Gaming Surface), overall it looks the same as the old Ratpadz, but it has been very much tweaked. The Ultraslick(tm) surface has been optimized for optical and ball mice and is slicker than ever. The RatpadzGS has been tested with every Logitech, Microsoft, and IBM retail mouse on the market that can be purchase.
The RatpadzGS was designed with a new ribbed structure. This has reduced weight and allowed the introduction of the Deskgrip(tm) feature. This means that placing any pressure on the center of the pad forces the feet on the outer edges to dig in, holding the RatpadzGS in place even when things get wild. Also this ribbed structure now houses nine polyurethane feet that give ultimate grip on their own. The feet are also now countersunk into the pad so it is nearly impossible to dislodge a foot and lose it.