The UBC Health Library Wiki has a page on Apple's new iPhone - Applications in medicine. People lined up around the block for hours for that little booger (my sister and her husband included) just a week ago and Dean already has information about its use in medicine. Wow!
According to the wiki page, Unbound Medicine is eyeing up to offer medical products for the iPhone. Emphasis will be placed on already well known references. Of course with the release of every new technology come the bugs and the iPhone isn’t immune to them. For example, if your iPhone’s battery goes kaput, it could be a costly and frustrating fix leaving you without a cell phone for a while.