Construct 2 exports -> HTML5
Gamemaker Studio (Soon to be released) -> HTML5, EXE, iOS, Android
Stencyl -> Flash, iOS, soon HTML5 and Android
Multimedia Fusion -> EXE, iOS, Flash, Android, Symbian, Xbox360
Seeing that, I realize how important this C2's weakness is.
C2 is currently good enough to make professional-quality games, it's a really powerful and friendly-user software, but even if you've developed an amazing game, it will be really difficult to make it profitable.
I'll finish my current game with C2 and I'll have a look at all the tool listed above.
Construct is clearly a very good software (with an active community!) but the different exporters seem to be considered as "nice to have" features... Seriously, they are not. They are important features, I should say high-priority features considering the current quality of C2. If it wasn't able to make great games, I'd understand but we already can do the 2D games of our dreams with the current C2... Now we need to share them with the maximum audience!
I could easily pay for social/in-app purchases modules, or iOS/android exporters... Actually, I'd like to!!