i think it could work similarly with other objects converting from one platform to another. Most android extensions are open-source'ish in the runtime, and you don't need the original source of the .mfx to package an ios .ext, so by looking at the code in the android version, it's plausible to make your own ios version of the extension, which is what i am trying to do now.
i don't know the in-and-outs, so i am just doing it as simple as possible. You would still have to implement the ChartBoost SDK manually in xcode, but i make the runtime fire off the code snippets needed, f.ex the code to show an interstitial with named location is:
[[Chartboost sharedChartboost] showInterstitial:[act getParamExpString:rh withNum:0]];
(from the chartboost instructions) ([act... fetches the string you input when making the "show interstitial" action in fusion)
