Cash Is for Losers! (Bloomberg Business Week)
Detailed article on Philly-born Venmo, including its early days, how its acquisition by Braintree (in turn acquired by PayPal) was almost out of desperation, the fact that despite the enormous volume of mobile payments it processes it generates minimal revenue, and how its co-founders' current roles at Venmo appear unclear.

The planned spinoff of PayPal by EBay will likely increase the attention Venmo receives.