Microsoft seems to be willing to do anything it takes to incite iOS developers to switch to Windows Phone.
The software company has developed tools to allow developers to port the applications more easily on Windows Phone. To make things shorter, the software will record all the iOS API and show the corresponding ones in Windows Phone, which will make porting easier, and even if adaptations will be needed, there is no need to start from scratch anymore.
Microsoft is also preparing a sort of dictionary with all the tips and tricks to make the migration from iOS to Windows easier.
Things are now getting serious between Apple and Microsoft, it is a real Casus Belli (act of war) as Redmond is trying to steal from Cupertino what made iOS number 1, the developers. We are now waiting for Apple's response.
On a side note, Microsoft also announced that a similar package will be released for Android.