mono-2.0-devel 2.4+dfsg-5 (i386 binary) in ubuntu karmic

 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 CLR (Common Language Runtime) including compiler and
 runtime, which can produce and execute CIL (Common Intermediate Language)
 bytecode (aka assemblies), and a class library.
 .
 This package contains various development tools and pull in a full
 development stack for Mono targeting CLI 2.0.