Re: What could pssibly go wrong?
Well you can never completely remove user stupidity from the equation - at least that is the general rule I follow when designing security into products - once in the wild, people will try to use software / hardware in ways that would never occur to a development team :-)
It has been available on my outlook.com account for a short time and it is really a very nice feature. In combination with SkyDrive / Office web apps / Windows To Go on a USB stick, it's a very neat way of being able to access data in a number of different situations.
Sorry Will Godfrey, but I think the example of someone using an internet based service, then trying to access it without an internet connection, is what I personally call 'cross-platform stupidity'. It isn't a reflection on the service, or the OS, or the concept - it's the person who is the point of failure.
If they are travelling to do a presentation, if they are not prepared for lack of even the basics such as power (take a fully charged laptop with spare battery), a projector (I take my own, just in case), let alone an internet connection (store your apps and data locally - you have practices the presentation, right...?), they probably don't have anything interesting to present.