First: Thanks, great series! I have not yet played with it myself, but this is definitely filed in my brain for future exploration should I start on a new project that needs maps. Neat stuff.

Wondering if it would be possible to use a circle like a URL drill down annotation. That is, in a stored process setting, have a stored process which returns this map with circles on it. And when a user clicks a circle, have that launch a stored process drill down which then gives a detailed report for that region (or whatever). Like you would do drill downs for SG charts.

Sound feasible?