Portable SharpDevelop or other IDE or Snippet Compiler

It would be very awesome to have some kind of portable IDE for software development, preferably one that supports any language. I can't count the times where I have my drive with me and I am visiting a friend or staying somewhere for a long period of time and I just feeling like programming out an Idea I had and I have no means to besides Notepad++ to get it down in a file.