http://minecraft.gamepedia.com/Tectonicus
Looks like is has some pros and cons vs overviewer, was looking for stuff EASIER to get going... In the end for the google maps it is similar in needing a cron job however it apparently is faster than over-viewer and lower on resources.
Edit: There appears to be several of these now.
http://minecraft.gamepedia.com/Programs_and_editors/Mapping#Mappers
BUMP!
It would be so cool to see the new map
Oh yeah, I've started playing around with a few different MC editors, I'm getting closer to building a bridge between worlds (but not Facing Worlds, I think Sjin still has to finish that build haha).
I saw some of the new texturing tools coming up for the next release, it's gonna be a big deal, I'm looking forward to some of that stuff!