For text processing in F# there is a library called FParsec, which is really powerful: http://www.quanttec.com/fparsec/ http://www.quanttec.com/fparsec/ Regard

For text processing in F# there is a library called FParsec, which is really powerful: http://www.quanttec.com/fparsec/ http://www.quanttec.com/fparsec/ Regarding JIT and Go, I've built identical programs in both and while Go is faster, its not by as much as you would think (in my example, 60ms vs 40ms). Go is much more verbose to write, but its output exe is all by itself without the hundreds of dlls .NET likes to lug around. F# works with CoreRT just fine, with some small caveats (its sprintf/printfn functions don't work I think). I've modded one of my games to use it: https://github.com/ChrisPritchard/Tetris https://github.com/ChrisPritchard/Tetris