Some interesting times ahead for Windows users:
http://hothardware.com/news/microsoft-patents-big-brother-ai-to-monitor-everything-you-do-in-windows
If putting aside the privacy issue, technically it's a pretty interesting concept, however i wonder if it won't turn out to be a feature that has a certain bias from the microsoft side of things. Like suggesting you information that's not exactly what you were searching for, but similar enough to pass. So they could use this to delicately promote their services and products, forming your view based on what they think is good for you, but not necessarily what you would choose if you knew about other possibilities. I am pretty skeptical about them being neutral
enough in that regard.
Heh, keeping your diary on your windows computer might not be a good idea in the future too.