Looks like its yet another new service that lets you pay somebody online. Invite only at this point, though I seem to have made it through. The usual fees for credit cards, but free for debit. Whether it will work for gift cards I have no idea. Figure I'll take a shot with a low-value gift card and see what happens. Might be interesting for a bit. I can't find any record of it being discussed on FlyerTalk. Looks like they took an earlier stab at Twitter card in stream payments and then got shut down by Twitter almost immediately. Not confident they'll be around for the long haul, but still might be an interesting way to get rid of gift cards for a bit if that works.