mono-jit 1.1.12-0ubuntu2 (amd64 binary) in ubuntu dapper

fast CLI (.NET) JIT compiler for Mono
 Mono is a platform for running and developing applications based on the
 ECMA/ISO Standards. Mono is an open source effort led by Novell.
 Mono provides a complete .NET CLR including compiler and runtime, which can
 produce and execute CIL bytecode (assemblies), and a .NET class library.
 .
 This package contains the Virtual Execution Environment and code
 generator (Just-in-Time and Ahead-of-Time) "mono" which runs CLI (.NET)
 applications, currently available for i386, powerpc, amd64 and ia64
 architectures only.