The guys over at MsMobiles (www.msmobiles.com) spotted this announcement by UCLA Medical Center around their use of Windows Mobile devices to access patient records and even X-Rays. 

http://www.healthcare.ucla.edu/news/detail?rad_id=6532

The video recording of the presentation is at: http://sinapse.arc2.ucla.edu/streaming/healthcare/gcq-rm9-300k.ram