Thanks for all the great responses guys, can't thank you enough.
This is still early days in the design so nothing is concrete except for having two wheels, electrically powered, good rider weather protection and the ability to carry large amounts of caro. Being electric opens up a lot of opportunities in terms of chassis design as there is a lot of flexibility in where components can be located. Because of this instead of using top boxes or panniers, cargo could be held within the space of the frame itself (just one idea). I'll keep the questionnaire open till the 16/04/12 and keep you posted about the results and put up a concept or two when they are done.
Keep 'em comming and again thanks!