John Halamka, MD, addresses the crowd at the Standards Town Hall, which focused on the use of harmonized standards in achieving meaningful use.

Attendees capture a rare sight: A snowy day in "Hot"lanta.

Army Col. Claude Hines leads one of HIMSS10's many military-focused sessions. As program manager for the Defense Health Information Management System, Hines has the task of overseeing an EHR with more than 9.5 million beneficiaries who constitute a transient population.

Clinical communications IT vendor Voalte brings flair in the form of apparel. Here, Voalte exhibitors show off their pink scrubs and flashy sneakers.

Some vendors even have hands-on interactions with attendees, like this shell game, illustrating an old point about perceptions and reality.