Earlier this week, Forbes featured an article on payment gateway, Braintree. Throughout the two-page piece, the author reveals some interesting facts about the Chicago-based company.

Here are some highlights:

• Customers include OpenTable, Fab.com, Airbnb, Uber, Angry Birds, and Living Social
• The name Braintree comes from a town in Massachusetts that was home to Presidents John Adams and John Quincy Adams
• By the end of 2012, Braintree will employ at least 100 people
• Braintree’s mobile client libraries are now at nearly $1 billion in mobile volume 
• Braintree’s clients are in 30 countries in Europe, Latin America, and Asia (its staying out of China and Japan because of regulatory issues)

CEO Bill Ready strives to make Braintree the iOS of payments. Forbes reports:

“He wants Braintree’s technology to be like Apple’s (AAPL) operating system — a way to make all the complexity of the payments infrastructure easier for developers to access without requiring them to know all of its nuts and bolts.”

To learn more about Braintree, watch its FinovateSpring 2011 demo.