I use PN to compile... alot. One thing that really gets old is dealing with tools. I have made several copies of my compiler(s) with different command line arguments. (compile, compile with debug, compile to win32app, compile to assembly, compile to dll, etc.) -- and I since PN does not allow you to create a "copy" of a tool this was a long copy and paste process...
So I think I already added a request for an enhancement to copy a tool.
But what I have been thinking about is "profiles" for a tool -- kind of like having a "release" and "debug" profile in VS. -- only I really can't visualize how that would be implemented enough to really make a recommendation for an enhancement... any ideas?