Google Maps Speed Boost
Again the Google Maps team listen to thier users and developers...
They have vastly improved the performance of removing the markers (or icons) on the google maps. Soon a boost for the Overlaying of third party data.
"Significant speed improvements in removeOverlay() and clearOverlays(). As promised, we've made removing overlays much faster. According to our tests, removing 100 markers now takes 1.5 seconds instead of 18 seconds in Internet Explorer, and 0.5 seconds instead of 8 seconds in Firefox. See for yourself. Next up, we're working on making addOverlay() faster."
Good work Google.