It would be nice if it could remember my changes (company name, address). Perhaps save them and provide or short URL or update URL in real time (/#field=value&field2=value2) so it's bookmarkable. Being able to add custom fields to the top would be good too (client number for instance).
I'm using local storage; when you leave the page it should remember all that information - As soon as I've got the user accounts down I'll make it happen.
