http://www.jamesandjoe.co.uk/

This is the finest Google mashup I've seen since the last Google mashup, and possibly the most original use of the Google maps api I've seen. Why? Because it's not with maps. Instead, they use the functionality to zoom into images and let you get a closer look at their work.

Which makes me think: the Google maps api is free, there's no limits on commercial use that I can find in the terms of use - so why do retail sites continue to pay for Scene7 and others for their zoom functionality?

Anyway back to James and Joe. You need to go into Projects to get to the mash up goodness: these guys are very funny, very engaging, very clever, and very creative; I'm particularly fond of their dairy council diet coke parody, possibly because I'm a new dad.