I was thinking about this today, trying to play around with doing different components one at a time to see what is fastest. It would be really nice to see the number of items done alongside the number of minutes each day.
I can kinda guess by watching the number due count down, but we all know that that is an inexact method.
I see this as being both a good motivator, (know exactly what you have managed to do), as well as a good tool for letting you refine technique and try to optimize for speed. Plus it'll be a little added motivation to try to get faster and up your items/minute rate!
Just out of curiosity, what is everyone's rate? With all items enabled, I'm usually about 10/minute. If I have 100 items due, it'll take me about 10 minutes to get through.