I also find that suspicious...
First: all the platforms listed, natively, without break, in beta, with all those features listed... either scam or promesses that will not be fulfilled, or will take a lot of time to fulfill.
Second: HTML5, Flash, and natives, what is wrong with them? sounds like "OMG WE HAVE EVERITHIN", first: if they have html5, they already have multiplatform, ok, for some reason they could prefer native I'll admit, but flash..? Flash? Flash? pointless.
"The spark editor has been made with spark": would love to see if it works really in a browser then, also "has been made", I though it was beta.
Scripting + behaviors + events sheets
Last time I saw an editor combining events and scripting, everyone went for the scripting when the events were not working, thus bugs were never corrected.
Use powerful physics: would love to see that working in a browser too, just to see.
Maybe legit, but seems more like ideas....