Fabric Engine has released version 1.0 of its platform for multi-threaded optimised execution of scripting languages.
Kind of cool, if somewhat misleading. The way that's written seems to imply it speeds up the scripting language itself, but reading further it seems to just be a lower level language that's easy to use from within those scripting languages. Using an FFI to speed things up is nothing new, but making it easier is always nice.
The 'new' part relates to using LLVM to do the compilation on target - this actually makes a big difference in workflow, and is also much more familiar to people used to developing with dynamic languages. It also opens up some cool possibilities around scaling of computation...