Attacking System.Reflection +Emit ... ?

Hi All! 

I have browsed some source by now and also the
pnet-lib status. I found System.Reflection.Emit missing
(suggested by Gopal also) and I'm thinkin I could start
there. 

I would like to write some tool from scratch that
use the Reflection and .Emit stuff and simply
fix/add things as I need them. 

Idea 1) 

 A Unit test-tool for IL-code, similar to NUnit but
 with added features. 

Idea 2) 

 Some kind of scripting engine that create IL at runtime. 

Or why not both... hmmm..... 

I would appreciate input. Would I be walking someone else's
path here? How does the ideas sound? Features whish-list?
Anyone thought about Emit design/approach? 

Thanx! 

/Jonas