I support GNOME having contributed a tiny bit to the drafting of the Foundation's charter. But this issue seems to be a "big deal" just because they have to defend their trademark to keep their trademark. For which we can fault the USPTO.
As for Groupon making a serious inroads into point of sale software, doubtful. I'd almost play the long game on this one and wait for Groupon to figure out another way to lose money. Since that seems to be the only thing they excel at.
