Much as I am wondering just why on Earth the average Joe would want to do this, it seems that Microsoft's top boffins are working on a way to - get this - create a "backup of your mind", in a manner of speaking. The BBC's web site had this to say:

"Microsoft researchers are working on ways to create a "back-up brain" that will do a much better job of containing and cataloguing every picture you take, document you write or conversation you record.
The scientists collaborating on the project believe that the database of your life could hold a vast array of items that are automatically catalogued and as easy to search as Google.

Yeah, yeah.... We are Borg....

Read more: BBC Web Site.