I am disappointed by the Windows Phone 7 emulator. Why? It just pops out "lost connection" error and I have to spend a day to figure out what is wrong. I have a class which implements the INotifyCollectionChanged interface. In the item I was trying to hold a reference to its parent which is a INotifyCollectionChanged structure. Do not ask me why, this make the emulator crash. How to fix it? change its type to object. I guess some boxing is happening behind.
Hopefully the phone is as good as media said before.