Is Silverlight the only option for WP7 App development?

Is silverlight the only option for developing WP7 appl开发者_C百科ications? What about Java? Or is there anything else that WP7 supports?

You have these options (as of now):

• C# (Silverlight / XNA)
• VB.NET (Silverlight)
• F# (Silverlight)

Ultimately, any CLI-based language can be used to build WP7 applications as long as it allows building WP7-specific assemblies (given the restrictions). Unoficially, it is known that there are native hooks and it is possible to use COM inside a WP7 app, but this is not yet a part of the public SDK and an application that implements a native layer that is not directly authorized by Microsoft will not even get through the approval process.

You can implement applications and games for WP7 using Silverlight (C# or Visual Basic (though VB not fully supported yet)) or XNA (C#) only at this time.