I did found this : http://www.renderengine.com/
and this is very, very close to the Construct philosophy !
So, why not rely on this library ?
A web version of Construct could be fine too, by "a web version of Construct", I mean, the complete IDE as a web page. (Using HTML5 technologies)
It's feasible and would be cross platform by definition and ready for the next revolution.
Google Chrome OS is taking the first step toward web applications.
When you see technologies like WebGL supported in Chrome (eh, of course, these guys know what to do !), you can clearly see the potential (should I call that like that ?).
But, the whole point of this was to say :
Hey guys, you're doing the same job as others