Discussion about MonoTouch download and versions.
I know but this is insane. Apple is not giving .NET API for iPhone development called MonoTouch for free. Not only that, MonoTouch requires a Mac machine to develop applications. So you can't develop iPhone applications on a PC.
MonotTouch comes in three versions - Professional, Enterprise, and Enterprise5. Pro is a personal license. Rest two are company licenses for single and 5 users.
Cost is $399, $999, and $3,999.
So to get started with MonoTouch, you must spend at least $399.
That's no good ;)
Any way, here are MonoTouch download instructions and more about versions.
http://monotouch.net/Store