I like the idea of having targeted spaces like an iOS SDK space. However, many of the community members only look at the Discussions area -- or only interact with the community via email and only monitor Discussions.
So I'm reluctant to make the change at this time. Please be patient with us on this one -- we are considering a number of changes to the architecture of the community, and I'll include your request as part of that process.
Rather than subforums, tags and other means can be used to help us find these. Mostly people can use the 'iOS SDK' somewhere in the subject.
The current forum layout is certainly not optimal.
A way to categorize posts, so people know where to look for related questions and answers would be good.
Subforums e.g. for
* FM Pro
* FM Server
* FM Go
* Web Direct
* iOS SDK
* Plugin SDK
This way things could find a place to go.