title: Managed Extensibility Framework (MEF) vs. Composite UI Application Block (CAB)
body: <p>We are currently looking at either using CAB or MEF for our next application.  I didn't see any examples on codeplex of how event brokering is handled for sibling control communication, maybe I missed it.  How does inter-control communication work in MEF?  </p>
  
  <p>Also, we are planning on using Infragistics which has provided additional components for the CAB framework.  How well will Infragistics controls integrate into MEF?  </p>
  
  <p>Overall, is MEF worth pursuing for a decently large, 15,000 hours of strictly development, application?</p>