Don't know if it's even feasible on the N900.

Snap a picture of a business card and automatically all the information is compiled into a new contact within your address or contact's book.

Had a similar program on my E90 and I know it also exists on other phones [OS's] as well. Take a pic, window pop's up that allows you to make sure the showing information is correct, edit it if need be, then hit the save button.

Anyway just a thought as I haven't seen any posts about doing this on the forums.