Sorry guys, we browse the forums as we're able to on top of our other duties, but threads do fall through the cracks sometimes. If you want a guaranteed response, you'll want to email the
support ninjas.
That said,
this thread has info on pulling info from outlook and adding it OmniFocus.
It looks like we have a feature request open on compatibility with Exchange servers; it's not at the top of the most-requested-features list, but it's not at the bottom of the list, either. You'll want to email the support ninjas and let them know you're interested. (All other things being equal, items with more customers attached tend to get assigned higher priority.)
Hope this helps!