We've just launched a private beta of Swift PayPass (Swift Pay Pass - Sell Your Digital Goods...) that's not 100% exactly what you're looking for, but may be helpful.

It's currently in private beta, but here are a few invitation codes for free beta accounts.

yciqm26jgt
fgtg30c02u
v9imf2i8m1

You can goto Beta Account Creation to register using these codes. They are 1 use and are given on a first-come first-serve basis. I hope this helps.