Will personal analytics be the next trend in the overall analytics boom?

Each of us as individuals generate so much data on a daily basis, just by the things we do. Some of it is collected and some aren't. Personal finance, diet, fitness are essentially subsets within personal analytics. Come to think of it, location-based sharing is yet another subset in personal analytics. So is the Facebook wall. And Twitter as well. Collection of data has been the challenge so far. Mint addressed this challenge in personal finance. Once the data-collection problem is addressed in other subsets, personal analytics has a lot of potential. What do you guys think?