My MacBook was purchased in Jan. 2007 and I calibrated the battery when it was brand new and haven't done it again since and I'm at 390 cycles and it just dropped to 99% (5008 mAh) today (using iStat). I consistently get ~3 hours on the Battery. I also turn the screen down a lot.
I move around with it a lot so it's constantly charging and draining the battery, that probably helps keep it healthy.
From the other posts in this thread, it seems that I am in the minority as far as battery heath is concerned.
Hope everyone's having a good Monday.
