>It seems that the doctors must either have a wireless connection or take a subset of the data then easily synchronize it when they get back. If they had to search for a computer on a ward, login in, start our app, this would take too much time. Or if the synrhonization process was too technical for them they wouldn't do it. Cell modems are also problematic with medical equipment and in fact cell phones have been banned inside hospital buildings.

Just a precaution - are you sure the wireless device wouldn't interfere (interfear :) with other equipment? I've seen bad things happen to a simple coax ethernet connectino in the x-ray (and sure Cetin knows more of such issues). I wonder if some other equipment may have bad influence to the wireles connection and vice versa (if metal detectors can interfere with pacemakers, who knows what else may influence other things).