Hi,

I've built a small library based on boost::signals to provide a 
mechanism to update related-values across an application.  Any comment 
welcome.

Note that the documentation is very minimal for now and I continue 
working on it, but I think there is enough to have feedbacks and to 
discuss the place of such library in boost.  Feedbacks may also 
influence how I will continue working on it.

Regards,

Nicolas Fleury