Great video!

I want to see more like this one. I would also want to learn more about MVVM best practices.

I'm myself struggeling with building a rather simple solution that loads data into a LongListSelector as it is scrolling. I then want the data to be cached locally by some data service. I don't want to make things complicated - be over-doing it, to say.

How are you guys at Microsoft building such solutions? How is it done in the People hub? I feel like I need a complete reference project for that scenario.