I figured I should share my experience last night here:
I had a strange issue with the battery last night. I was watching a few episodes of a TV show in Media Player classic and before watching the last episode, I checked the battery level, which showed about 50%. At the end of the last episode, I remoted into my desktop downstairs and the netbook suddenly powered down with the red low-battery light flashing.
I plugged it in and when I woke up this morning the power and battery leds were alternating. I unplugged the battery and everything is back to normal, but now I'm concerned, mainly due to the battery suddenly just "dying" at 50% charge. The only thing I had done before this issue happened was that I had run the battery to 70-80% charge and then switched to AC power.
I still can't get the Dell battery utility to work with this battery under Windows 7, though I am on A04, so perhaps I need to upgrade to A05/06?