New MMF Purchase, should I ... ?

[OldSchool80s]

Okay, so I'm gonna purchase MMFDEV.

My focus is to develop mobile games (mainly iOS, then later Android (Nook, Kindle, etc.))

I'm gonna get the iOS export module, but should I get the Flash exporter to help in testing before exporting to iOS? (Or is testing via EXE fine)?

What is recommended by my fellow iOS/Mobile game designers?

[RhysD]

Testing via EXE is fine. Just make sure that if you do use any extensions, that they are supported by the iOS runtime (there's a list somewhere). Flash isn't really necessary if you are looking to develop for mobile.

[Jeff]

I don't think the Flash Export Module will help much at all - Unless of course you want some Flash version of your games for promotional use.

Testing the EXE is a good start -- the one concern is to be sure you only use objects that are valid under the iOS (or your other desired output)
And then your real testing will always have to be on the actual device to really make sure things are displayed and performing as you wanted them to.