It seems that the Droid is buggy when used by people with long hair, the problem is that the Droid's proximity sensor fails and leads to accidental key presses (commonly the end call button).
And I have a quick experiment to show it...
THE STORY :
My girlfriend has been having problems with dropped calls since she got her Droid. The problem was that she was some how hitting the End Call button while in the middle of a phone call. Now, under normal operation, the Droid's proximity sensor should detect when you have the phone up to your head, it then locks itself to avoid accidental key presses. (You can check this out for yourself by entering into a phone call session and moving your hand or other object up close to the phone, the screen dims and locks as the object approaches the phone).
The problem my girlfriend was having was that you could explicitly see the proximity sensor failing while she was in a phone call. That is, she had the phone right up to her head, yet the screen was not dimming/locking. To make things weirder, the proximity sensor worked just fine with me!
I know what you are thinking, something is wrong with your girlfriend's head, I thought that too. But then better senses prevailed. We tried this simple experiment that shows that our Droid does not play well with long hair. This may not be a problem for ALL Droids, but we did try this out on two phones and they both exhibited the same bug...
For this experiment you will need a test subject (with hair, preferably long hair but you can try this with short hair too):
1) Go into a call (you can call your voice mail and leave it in call mode).
2) Put the phone right up to your subject such that your subject's hair is right up against the phone. If your subject has long hair, you can go ahead and put the phone next to the subject's ear, making sure that his/her hair is between the phone and his/her ear. If your subject has short hair you can just put the phone on top of your subject's head, the proximity sensor is supposed to work just the same.
3) If you "wiggle" the phone you will notice that the Droid's screen will periodically light up, indicating that it is **unlocked and subject to accidental key presses**. In normal operation the proximity sensor should keep this from happening. (NOTE: By "wiggling" I mean, move the phone a few millimeters up and down and side to side.)
4) Now for the control part of the experiment : Try this same experiment up against your subject's ear, make sure there is no hair in between the ear and the phone. You will notice that the screen stays dark, meaning it's locked and working normally.
It would be nice to see if others can replicate this experiment....