Low-Level Virtual Machine (LLVM) is a compiler infrastructure designed for compile-time, link-time, run-time, and "idle-time" optimization of programs from arbitrary programming languages. It currently supports compilation of C, Objective-C, and C++ programs, using front-ends derived from GCC 4.0, GCC 4.2, and a custom new front-end, "clang". It supports x86, x86_64, ia64, PowerPC, and SPARC, with support for Alpha and ARM under development.
If you are signed up for the email list that freshmeat provides, you are only getting the release announcements. However, LLVM also provides regular status updates (http://mail.cs.uiuc.edu/pipermail/llvm-announce/2004-May/000008.html) which you are missing.
You are encouraged to instead subscribe to the llvm-announce (http://mail.cs.uiuc.edu/mailman/listinfo/llvm-announce) list which will get you crisp new status updates and release news.