Good news from Google Maps team again. Recently I've found api for Flex. This is a great advantage for actionscript developers. First of all, I've already mentioned that JS api is a bit slow thing... And specially I though about Flex/Flash maps API ( like Yahoo maps provided before ). And right now we have it.
At the first look not so "super" like JS api. But this is a big hit, I think.
Preformance of Flash API is great - very smooth moving, great animations. But you can see that graphics is not so awesome, info window looks "poor" and marker not so good like in JS version. But I think that Flash engine much better fits mapping tasks, first of all because of performance, it does not affect other stuff on your page, running inside flash player, optimized for animation and that's why very-very fast. API is done for Flex ( Flex SDK is free stuff that you can run from Eclipse ). Frankly, I think this is a good news , but I'll wait a bit... First of all I don't think that everybody updated Flash player to version 9 ( exactly this version needed to run Flex application ).
Anyway - this is a great news for everybody who is working with maps.
http://code.google.com/apis/maps/documentation/flash/intro.html