First of all best wishes for 2010. Lokad has been nicely growing and moving forward during 2009, we really hope to be able to move forward according to plans for 2010.
As a first token of goodwill, we have finally published the long missing User guide for Tags and Events.
Indeed, tags and events are a powerful extension of our Forecasting API, that let Lokad refines forecasts through meta-data. Both LSSC and L3C support this framework.
Tags and Events are especially useful in retail and manufacturing [to better handle promotion forecasts](/blog/2009/10/5/whats-wrong-with-promotion-forecasts/), but also product launches as well as all sort of factors that impact the business.