What is the difference between this and NGEN? Anybody?
Project N compiles to fully native code, so there can be no JIT, and significantly smarter optimizations can happen since they don't impact performance at runtime.
.NET Native produces completely native binaries. MDIL/Triton produces NGen binaries that still need a runtime and, occasionally, a JIT.
Sorry. Triton is the Windows Phone 8 "Compiler in the Cloud". It basically split NGen into two pieces, allowing the optimization to happen in the Store while the .exe generation happened on the device. The interface between these two halves is MDIL.
Bing will tell you a ton about Triton.