The only problem with this product is the amount of packaging it comes in! Given that it's the size of your little finger, it's amazing how the huge box wouldn't even fit through my large letterbox! Really not necessary...
Fixing this onto a laptop using widnows XP was ok - the process didn't match up with Belkin's instructions but it was possible to work it out eventually. It just took a little while, what with finding the printer driver etc. You may need to allow at least half an hour for what should be a five minute job.
Anyway it works.
Returned it and tried a competitors that worked great (granted after a similar SP2 hack, but described better in the competitor's guide)
Highly recommend, and its got a great blue led on it as well!