and braintree is serving a lot of these mobile payments, new mobile payments companies.y of which are mobile only. and so it's just another way investing in mobile to bring paypal both to the online and increasingly offline world. >> do you ever find a conundrum here, visa, mastercard $90 billion, e-bay $67 and back out to cash. almost getting no credit for the marketplace business because paypal is much faster growing than those guys. >> here's where i agree, it's an enormous opportunity. we used to just focus on e-commerce, which is a trillion dollar market. now with mobile blurring that line between online and offline, e-commerce and retail, it's a $10 trillion opportunity both for e-bay and paypal. so we think there's enormous opportunity. and we are doubling down our investment. >> and the retail experience has changed dramatically when you have paypal, right? >> absolutely. paypal is now being brought to point of sale. i was saying to you earlier i can now walk into the lobby of paypal's headquarters, go to the starbucks in the lobby, my cell phone's in my pocket.