As a medical researcher, I think the Passport could be perfect
One of the most common clinical tablet applications is using Citrix Receiver to emulate a PC-based electronic medical record system. These legacy systems give you a PCA interface complete with tiny click targets, pull-down menus, scroll bars, and input boxes. I've been using this on an iPad for about 4 years now with no hint of a native app interface ever being available. If you know anything about hospital IT systems then you know too be thankful if they even support Citrix.
The point is that you're gonna need a bigger screen if you actually want to use an EMR because they aren't going to actually support anything other than a notebook computer.
Regarding security, they just present you with their PC login screen which is about as secure as any wifi browser connection. They don't really care about anything else.