I really like the Servo library included with 0012 but wonder how hard it would be to have a library for more than 2 servos? I looked at the code in playground and I think it is possible, but then again, I'm a software guy by day.
Some servos don't like being at the extreme limits (0 or 180 degrees), either. I have a Futaba that works from 5 to 180 degrees. Anything less than 5 and I get similar behavior to what you are describing.
I've seen XBee circuits connected directly to the 5V logic lines and some that have the 5V to 3.3V level shifting. Will it work connecting the XBee's pins directly to the Arduino or is that just asking for a fried XBee?