If you need to do work on the road and utilize a keyboard and/or specialized software, get a regular laptop. If you're just reading email and surfing porn, iPad.
Also, when it comes to public accessible computers (hotel business centers etc.), I would never log into any personal account of my own (email, company, and especially BANKING) ... too many people out there sniffing passwords or recording key strokes. And I sure as hell wouldn't trust the hotel's software at trying to keep me safe when they can't even get wake up calls or alarm clocks that work.