Deferred Revenue

6 Months Ended

Jun. 30, 2011

Deferred Revenue

Deferred Revenue

8. Deferred Revenue

Deferred revenue consists of the following:

	June 30, 2011			December 31, 2010
Product shipped, revenue deferred	$	712,815		$	552,692
Customer deposits		298,641			312,154
Deferred service and license fees		6,086,646			6,214,317
		7,098,102			7,079,163
Less: Long-term deferred revenue		(398,352	)		(478,850	)
Total current deferred revenue	$	6,699,750		$	6,600,313