In all honesty, just by simply looking at this "pull tab" 1 of 2 things would come to mind. Well if you have any common sense at all.
1) Ohh look this spiffy little tab is in some way associated with the battery! (this leads to again 1 of 2 things)
1a) To remove the battery easily, allowing the upper portion to be lifted out of the Droid unit.
1b) To completly remove the tab to allow the contact points of the battery to nestle into the contact points in the device. (now at this point with this step, some, but not all would look at the battery and see that the contact points are obviously not located where this "pull tab" is located.
2) Ohh look, a pull tab that says "pull". lets place the battery in and see if this interfeirs with the batterys placement!
2a) No this doesn't complicate the batterys placement, and this tab helps me to remove the battery so I can change it or access my mcro SD card slot.
2b) (not the case but I will list it anyways) Ohh the battery doesn't fit because this tab must be in the way!...
That concludes my breakdown of this tab, the designers, I agree, must have thought their users would be smart enough without a 10 step guide on how to remove the battery, to NOT include it into the quick start guide.
I am NOT calling anyone stupid, I am just stating that when you get your hands on an item reguardless of what it is, a car, a phone, a microwave oven, when the cost is $600, before you start yanking on cords, or tabs or strings, just use common sense to see WHAT they MIGHT be USED for. It will save you A LOT of hastle and keep you from looking, or appearing to look stupid to others.
Edited for spelling errors, hey I am not perfect either!