Yeah, there's a few gotchas to watch for with binding that depend on the datatype. Flex 4 has only improved things, though it did take a bit to adjust. I really

Yeah, there's a few gotchas to watch for with binding that depend on the datatype. Flex 4 has only improved things, though it did take a bit to adjust. I really like the {syntax} though, and apart from the binding issues with XML I really like working with it in Flex but hate it in JS. Flex makes the XML vs. JSON distinctions almost go away for me. (tldr: yeah, async stuff in Flex can sometimes be really verbose.) I don't find the async stuff too bad, though it all can horribly be abused. The project I inherited used Cairngorm with SOAP services and had a separate Event, Command, and Delegate class for every web service! Some generalizations have made that into only one Command class per web service that's just responsible for handling the specifics, though I also have a general Command class that will offload the response to a callback function the requester can provide. I always liked Ext's (er, Sencha's...) Ext.Ajax.request() and jQuery's offering.