Hi R-developers, R (unlike say C++) is rather interactive/interpreter language with some high-order functions support. There is a nice project, which able to bring exactly these type of language implementations to a next performance level. I mean LLVM (http://llvm.cs.uiuc.edu/) LLVM could bring performance of R very close to compilable languages like C++ or even overperform them in some cases. Every function in LLVM might be compiled in run-time before execution, what is very nice for interactive environments. It would be nice if R-developers could take a glance at LLVM before they start to move towards next major version of R. P.S. i guess this mail is rather for this page with other ideas: http://developer.r-project.org/ideas.txt with best regards -- Valery