Microsoft today announced 4 new ways to leverage your existing skills to bring applications to the windows store.
1) Web – You can easily convert a website into a Windows Store app. When running in a Windows app frame, the website can take advantage of Windows runtime APIs.
2) Win32 apps – You can now easily bring Win32 apps to Windows Store with new universal APIs.
3) Android (Java and C++) apps – Windows will have an Android sub-system that runs Android apps.
4) Objective C support – Yes, Objective C code that is being used for iOS can be used for Windows Store app.