In the company’s first-quarter earnings disclosure, Motorola Mobility finally put a number on XOOM tablet shipments: 250,000. “The Company shipped a total of 9.3 million mobile devices, including 4.1 million smartphones and more than 250,000 Motorola XOOM tablets,” reads the report. “In the first quarter of 2010, the Company shipped 8.5 million mobile devices, including 2.3 million smartphones.” Motorola Mobility also posted $3 billion in net revenues, up 22% year-over-year, with mobile device revenues of $2.1 billion, up 30% year-over-year. The company did post a GAAP net loss of $0.27 per share, however, which was down from a $0.72 share loss in the first-quarter of 2010. Motorola’s complete earnings statement is after the break.