http://techcrunch.com/2014/09/08/paypal-braintree/Bill Ready, who led the company through its sale, says that mobile conversion rates are still far off from where they are on the desktop web. Thats partially because its a lot more tedious to enter or re-enter credit card information on mobile devices. Ready says that more than half of e-commerce shopping experiences happen on mobile devices, but only 10 to 15 percent of purchases occur on smartphones.