Is it just me, or in the past few months have I seen a lot more browser based web widget builders oozing out of the cracks of the various Cappuccino/Javascript/

Is it just me, or in the past few months have I seen a lot more browser based web widget builders oozing out of the cracks of the various Cappuccino/Javascript/Ruby/etc frameworks? As html5 ascends over flash's corpse this year, we might just hit an inflection point where the level of sophistication of web builder apps passes the drawbacks by doing more desktop-y things.