I'm not sure if this idea belongs in this forum, but here it goes...
With the new Kongregate website's feature of hosting games via the iframe tag, why not create another upload area, similar to the Scirra arcade, where one could upload a version of the game produced via the Kongregate exporter? Then with a link to the corresponding Scirra-hosted page, one could easily set up the Kongregate interface to the game. Scirra could then add their custom loading screen (like the Kongregate/Armor Games/Newgrounds/etc. screens) to increase traffic back to this website. A win-win as everybody gains publicity.
Just a thought. Thanks for reading!
(Note: I'm familiar with the DropBox method of hosting games for Kongregate, I just think this alternative solution would be more... elegant.)