Facebook Acquires Daytum (Ryan Case and Nicholas Felton)
daytum.wordpress.com
daytum.wordpress.com
They call them "talent acquisitions."
I don't really see what the big deal is - founders know what they are being acquired for, and they can reject it.
These guys seem to have a unique perspective on human-data interaction and sharing. For example, the "Global Quick Add Feature" [2] is very intuitive. It seems like this is something Facebook is very interested in as it's essential to their product. I definitely agree with some of the other comments made here - I wouldn't be surprised if Facebook wants these guys working for them at least as much as they are interested in their actual product given their perspective and understanding.
[1] http://daytum.com/activity [2] http://daytum.com/about/how_to/global_quick_add
Anyone else have ideas on what else they could be using Daytum for?