Microsoft Research does some interesting stuff, though I have to take issue with their choice of naming. One wonders if they're trying to poke at search engines.

The "#" in C# made it painful, in the beginning, to craft a good query. Now they're using a symbol commonly interpreted as a wildcard.

I'm not insinuating any evil intentions with the name (that's a little ridiculous since it's an experimental language to begin with), but it's a little odd that they'd choose something that will likely be search engine unfriendly... again.