Yeah I think that that's either the deadline of the calculations or a composite average as to when the given project will be completed.
P.S.: I have now installed Folding@Home at my sister's PC without her knowing

It's a Sempron 2300+ @ 2Ghz and 512MB DDR ram so it should help.
By the way, does anyone know whether I fold on several computers under the same username whether it all counts for me?
JAN