On my list 'to do' is build and publish a Wherigo.

GS are killing it off by not doing anything with it. Garmin as H. said, haven't got it on its newer units BUT there is community support for it and I think there is life in it yet.

Yes my first Wherigo (a FTF ) on a iPaq PDA was painful, it took me over 10 mins to get the first hotspot; I couldn't get the distance to go below 1ft until eventually after walking in and out multiple times from different directions, I finally got there

It offers an informative interface and adds an extra dimension to a multi-cache. But, at the same time (on my Oregon 300) the interface needs desperate update because it could be so much clearer.

As I think I've mentioned before, I did a Wherigo that had no cache at the end It was done as a locals guide to their city, Prague, I enjoyed it as it took me to some interesting sites

As I think we all know, GS gets an idea and then seems to get bored of it and dumped for the new shiny toy