While there is quite a number of technoolgies aiming to ease the life of modern RIA developer ( Droplets, Xamalon/XAML/Sparkle, Laszlo, JSF, XUI, XUL based stuff, SwixML, Thinlets, XSWT, Luxor, Keystone, Jazilla, Vexi, Ajax, etc… thanks for this list Tariq Ahmed from Flexcoders mailing list we the three contenders for the final choice as main technology to deliver RIA applicatiion at client.
The conteders are: Flash, Flex and Laszlo. No surprise, here.
We selected Macromedia Flex as our initial choice in summer 2005 and we do not yet regret about it.
The selection creterea were: the exisitng developer base, the innovation development done with this technology, the solid widget library, AMF binary protocol support, final download size of SWF, final time of the development to name a few.
I would like to hear more both from strong opponnnets of Flash and Laszlo technologies how those technologies can be superior over Macromedia Flex to deliver enterprise level RIA in web-browser.