Laptops are great - I'm sitting here using wifi at home to a citrix work login and USB sticks have been a revolution (I'm going to fix a laptop tomorrow & everything I need is on one USB stick nowadays).

However, for actually doing work the best tool is the XDA Orbit work has given me - if I wanted to it could be my MP3 player, store PDF books & all my personal docs, give me wifi access into citrix sessions but I mainly just use it as a phone (wow!) and for my emails - the best feature of which is I can do work while watching rubbish television which I know that I shouldn't be wasting my time with - so I can leave one brain cell watching television while looking very responsive for work.