ArsTechnica talked with founder and CEO, Martin May. Among the tidbits of note:
He used to work at Local Matters.
The business plan appears, down the road, to include anonymous maps of where users go - specifically to which businesses. Sounds like a "Dash" to track personal behavior. I understand how businesses would be interested in such data; how will Brightkite entice users to provide it? And provide it accurately?
For now locations are updated via Web or SMS.