I have a Magellan GPS and want to download the Topo software. Three things can a couple people go in together on the CD and then download it onto both their GPS's. Also do you have to buy Magellan software or are there any other companies software that will work on each others GPS(i.e. garmin software on a Magellan) or is there a company that makes a universal software.

Thanks for the help

GHJ!