Now that you are all excited about MonoTouch you can get your hands on an evaluation version and see what it can do!!
The evaluation version limits you to using the iPhone emulator that is part of Apple's iPhone SDK for development and testing. This will give you a good opportunity to see what can be done with MonoTouch.
Download the evaluation version at http://monotouch.net/DownloadTrial
For the complete MonoTouch story visit http://monotouch.net/
And if you say the heck with all the eval stuff and just want to get your fully licensed copy of MonoTouch go here: http://monotouch.net/Buy for more details on the three versions available and links to purchase!