In a first-on-CNBC interview at the PayPal developer conference, eBay CEO John Donahoe said his company won't adopt Amazon's strategy of building and selling its own devices to boost digital sales.
Amazon sells its own Kindle e-reader to help boost sales of its digital book format; Amazon is also rumored to be considering the launch of its own app marketplace for Android devices.
Donahoe said eBay won't do that because it's committed to being a neutral player in the mobile space.
Donahoe also reiterated that he expects PayPal to be a bigger business than eBay before too long, because it is the dominant player in digital payments. A year ago at Fortune's Brainstorm Tech conference, Donahoe said it would take four to six years for that transition to happen; today he sounded a bit more bullish on PayPal than that.