I've checked the sample MAX2009 where you can add/remove tiles from the panel. I've played with this a little bit, adding and removing tiles several times, to see how memory was managed inside Mosaic.
I've rapidly increased my Firefox 3.5.7 memory usage to over 800 Mb, which is really high.
My question: How does the memory is managed inside Mosaic, when removing tiles from display?
Other question: As the whole thing is embed into a big instance of flash player, can we expect to have the same problems we have unloading modules in a Flex application ? (Memory not always released when references stay hooked, etc...)
Note: Using AIR is not an option for me.