[adammarkey]

The heavyweight category needs to be split up.

Technologies like flex / silverlight / javafx / open laszlo use compiled binaries to run their applications via a browser plugin (flash, java vm, silverlight vm).

The other products in the heavyweight category utilize HTML / Javascript and don't require plugins. That's a big difference that this person seemed to miss...

[saikat]

You are right that that is a big difference, but I wasn't trying to compare these technologies based on their runtimes - I was attempting to compare them based on the type of application they attempt to produce. I wanted to make this a very simplistic list without going down the slippery slope of explaining too much about each technology (as there is a LOT about each technology to explain). The way I see it, these are two different approaches to creating a desktop-like RIA, but the end goal is the same.