In the wee hours of the morning on March 28, RIM will roll out Blackberry Internet Service 3.0. During the four hour upgrade, Blackberry users can expect their email service to be a bit wonky, but it'll be worth it: BIS 3.0 brings with it support for WMA and OpenOffice files, and, more importantly, two-way syncing with Gmail. [Crackberry via Boy Genius Report]