The triumphalist note in many of these posts makes me sad. Flash had a ton of warts, yeah I get that. But there is a failure to acknowledge the collateral damage done to Actionscript that I find troubling. Itemrenderers, the ability to inline functions in MXML components and a decent OO framework gave me a powerful platform for rapidly iterating UI designs. The tools I currently use just don't measure up (I'm looking at you, C#) and it's left a bitter taste in my mouth.