I've built some Windows Phone apps and one thing I like is the ability to pull a hash of the users LiveID from the phone so that users can be uniquely identified across devices.
Is there a good way to do this in metro apps. I'm sure I could use the device ID but then they're data wouldn't persist onto other devices they might own.
Anyone else have a good solution to this. I'm trying to avoid user registration in my app.
Thanks!
/Eric
Dev