Last week, Nicholas Felton and Ryan Case, the guys behind Daytum, announced that they were joining the Facebook team. Daytum, the personal data tracking website, will continue to operate. As big fans of Felton’s annual reports, we can’t wait to see what he does at Facebook.

If one thing has become clear in the age of social networking, it’s that people love to share the miniscule details of their lives with each other. And if they can do it in a graphically appealing way, that’s even better. Felton has made smart information design accessible to non-designers—similar to what Target has done with product design—and it’s great to see a company like Facebook placing such value on design and its impact on the user experience. If data tracking and display takes off, it’ll be interesting to see the ways in which it will impact how people think, innovate, connect, and share.

On the other hand, there’s always the concern that when a famously independent designer goes to work for a big company their innovation can lose its luster. We’re hopeful that’s not the case—we really want to be able to track the amount of peanut M&Ms we consume in the office each year or how many times any of us wins a game of foosball against Billy.

What do you think? Will data-tracking be a good addition to Facebook? Will it add value to the way we interact with each other online?