More than 100,000 businesses, including 77 percent of the Fortune 500, use Box.net, Levie said. The company claims more than 7 million users worldwide, including consumers.

Box.net is available as a native application for PCs, Macs and major mobile platforms, as well as a browser-based tool built with HTML5.

Under the new deal with Motorola, the Android version of Box.net will be available on all Xoom tablets worldwide.

HP plans to start by including Box.net on all its desktop PCs for small and medium-sized businesses in the U.S. and is interested in expanding the offer in other parts of the world, said Kathy Chou, vice president of HP's Personal Systems Group Americas.

Chou sounded notably optimistic about the partnership, given that just last month, HP said it was studying the possibility of .