The Mono Project announced that it intends to allow iPhone developers to create apps for the iPhone and iPod Touch by using the Mono Framework. This started the MonoTouch project.

MonoTouch will allow developers to create applications for the iPhone and iPod Touch by using C# and .NET libraries. Since there is no chance to use JIT (Just-In-Time) compilation on the iPhone (a limitation on the kernel level), the developers from Mono decided to use AOT (Ahead-Of-Time) compilation to run .NET application natively (which are translated directly in native code). This will offer a full-featured solution to deploy applications for the Apple's AppStore.

MonoTouch can be used with XCode or MonoDevelop. Still, a Mac and a copy of iPhone SDK is required for MonoTouch to work. The programmer should also be a Apple Registered Developer to deploy applications on the devices.

MonoTouch was tested with the iPhone OS 3.0 only.

For the list of limitations, please visit this page.

I'll be interested to see if this is successful; i highly doubt it. I'm an iPhone developer and Objective-C (the main language for development in the iPhone/iPod Touch) has a massive library on the iPhone with Cocoa Touch and Foundation and everything. Unless Apple helps out the project i don't think the Mono developers will be able to integrate C# and have it be successful.

probably NOT going to happen

Exactly my point

Well they implemented C# on linux and Mac already, why would this be any different just because they have more libraries available to them (= easier)?

I've used Net60 (.NET Compact Framework for Symbian Series 60 platform) before and it's great.
It'll be really cool if they manage to bring .NET to the iPhone as well.

Considering the fact that MonoTouch will still be a wrapper of the iPhone API, I don't think that Apple will have anything against the framework.

Agreed, especially since you still need a mac to develop it