Make the Brain Scriptable in OS X
In OS X it is easy to make your application scriptable. Then one can integrate the Brain in a workflow, automate tasks and many more interesting things.
And see to that you get an iPhone version out soon!
I'm not an expert with Mac OS X Automator - might it be able to do some of the things you are considering?
as an aside, your wish for an iPhone client has come true :)
command line shell scripting would really rock whether it be PERL, python, etc... yes - some of us OS X geeks are diehards in this dept :)