This seems to be a credible notion from 9to5Mac - especially given Jobs' stay in the hospital for his liver transplant:
http://www.9to5mac.com/apple-tablet-islate-medical-hospitals-3547651being involved rather heavily in the medical arena, this suddenly made a boatload of sense. Particularly if there's Citrix viewer available, this would make looking at really sophisticated, existing Windows apps available to the Apple platform immediately.
Too early to have a stiffie, but the notion certainly is worth it...