Mashup Camp Dublin is coming up and IBM are running a Business Mashup Challenge.

Amazon’s Web Services are very appealing so I was thinking of putting together a mashup that shows you the price of a book from each of Amazon’s international sites in your own local currency and with postage included. Unfortunately (well for me anyway) after a bit of searching on I found that it’s already been done, Pricenoia - and very nicely too.

Anyone got any ideas for a mashup that would be interesting/fun/useful/all three?