Well, after watching Sue and Dave's talk on Speedy 
Maps<http://www.google.com/events/io/2011/sessions/speedy-maps.html>from this 
year/s I/O, one question at the end was about speeding up complex 
polygons. Sue mentioned that a member of their team might be willing to look 
at solutions for folks, so I thought, "why not?"

Here's my map that overlays 3 very complex KMLs loaded with polygons:
http://gis.mda.state.mn.us/source/

I have my Python guy create these from an ArcSDE (ESRI) source and update 
them every week. I believe he first simplifies the geometry, and then 
reduces attributes, in order to get the size under the Maps API limits. But 
it's still a bit slow to load the KMLs. 

One question: if I use MapTiler to create tiles of these, will I be able to 
preserve the infoWindows?

Please also excuse my sloppy Javascript. I'm not exactly an expert in that 
arena...but at least I've minimized it! I can provide it with comments if 
anyone wants to see it in a lengthier form.

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