I've been playing with Google maps version 3 and have made a bit of a clone of the map display from the wspr site here:
I haven't implemented who's hearing who display yet but work is under way.
The data is being scraped from the database web page every ten minutes (hope that's ok?).
Any feedback would be welcome and the source code is right there if whoever looks after the map wants to take it.
Best wishes,
Peter