Microsoft just launched an open-source project called Dynamics AX 2012 Windows 8 App Developer Starter Kit. As its name suggests, the project is about developing Windows 8 applications that communicate with Dynamics AX 2012.
It currently contains one sample application and a guide describing its development. The sample application displays AX alerts for a given user – it looks like this:
The application uses just AIF and Windows Store project in Visual Studio – the Starter Kit is (at least in this moment) about demonstrating how to develop Windows 8 apps, not about implementing any special libraries for AX-Win8 projects.
According to information on Codeplex, Microsoft plans to add additional sample applications and tutorials in future.
I successfully followed the guide and built the sample application using AX2012 R2, TCP adapter (the guide uses HTTP) and Visual Studio 2012 Express. The only trouble was that the guide expects that the type of WorklistService.EventAlertForUserServiceFindResponse.EventAlertForUser property is AxdEventAlertForUser, while it was generated for me as AxdEntity_EventInbox[], so I had to adjust some code accordingly.