[Haskell-cafe] Top-level state debate on the wiki

I put up a wiki page summarizing the main proposals for top-level mutable state. The type-dictionary approach isn't there yet, but there's a space for it; I'll probably fill it in within the next 24 hours unless someone else feels like doing it first. Please add more detail, objections, examples. Especially examples! Here's the page: http://haskell.org/hawiki/GlobalMutableState (It also includes an explanation of why I chose that title, though of course you're welcome to dispute that too.) -- Ben