Boiled down, this is a web-based thin client and, since it offloads the rendering to a back-end capable of running any plugin, we’re also able to render Silverlight, Unity3D and other plugins. I gotta say: it’s a bit of a trip to see Silverlight (such as the Artefact Animator) on an iPad.
On the downside, this requires more CPU time on the server and it’s not as fast as running Flash directly would be. Also, this only delivers images, currently. We’re working on a version that speeds up delivery by using the h.264 codec to deliver images and sound.