Let's play Name That Extension!

A large number of the newer GHC extensions have no cabal name. This is a very bad situation because if Hugs/yhc/etc were to gain support for (say) GADTs, it would not be possible to run cabal programs that require them, since the way programs specify dependency is with -fglasgow-exts. Also, what is the protocol for requesting cabal extension names? I've many Cool Extension Ideas for my haskeell impl project (nowhere near done). Stefan