What about an ETA ?

[feth]

While we're talking progress information, I was running a long computation by a sloppy friend coder of mine the other day, and there was no way to tell when I'd be able to get my machine back^W^W^W^Whand the result.

ETA stands for "estimated time of arrival". It belongs to the same family of features as percent completion and might look approx. like this:

[11/02/2012 18h14] [Long calculus] starting 100000 iterations
[11/02/2012 18h32] [Long calculus] 10% complete - 10000 iterations done - Estimated completion in 02h42m23s at 21h14
[11/02/2012 18h53] [Long calculus] 20% complete - 20000 iterations done - Estimated completion in 02h25m00s at 21h18
...