Microsoft released over at Codeplex the AMS (Office App Model Samples). It’s a collection of sample code and documentation for different app scenarios, this is the recommended way of doing these scenarios on Office365 (and on-premise SharePoint) .
I have had a quick look at some of the samples and this looks very good. There are very good code samples and what looks to be unusually good documentation 🙂
You should take a look at the samples at Codeplex and there is also a good PowerPoint presentation there describing the different samples. All in all I’m impressed by the quality of the documentation. Very good work by the people involved.
The scenarios covered by the samples is these: