Here's the main image, produced with TileMill from the good folks at MapBox:
[caption id="attachment_952" align="alignnone" width="500" caption="Square activity in New Orleans on Super Bowl weekend"][/caption]
Ritchie King did a great job summarising our explorations over on Quartz, the new-ish business blog from Atlantic Media. Lucky for Square, two of their obsessions are mobile web and digital money, so I imagine they'll be watching us closely!