Last night we preformed a major upgrade to all of our servers, including the web and database and DNS servers. The upgrade increased capacity, bandwidth, processing speed and other things.
The effect is that all the maps should be created even faster than before.
The site and our servers were down for a few hours, for the first time since launching in March of 2006. If you had any issues or couldn't reach the site, we apologize. There may still be lingering issues, and we'll keep you posted in this blog and across the top nav of the site.
Thanks and enjoy the improvements!