"I have long argued that if Microsoft was unwilling to port the
Windows operating system to Power-based machines (this is clearly
not hard, since the Xbox game console is a Power-derived chip
running a subset of Windows), or if IBM was blocking it in some
way, perhaps the next best thing to do would be to embed the Mono
runtime down in the OS/400 and IBM i operating systems and let them
run C# applications natively. This seems perfectly obvious to
me."