Bigbot

Shoulders
  bimba pneu-turn rotary actuators
  elbow 

Android as brain (and orientation/balance sensors, MediaRecorder/streamer)

Alginate serves as great casting for molds

Use AOA (Android Open Accessory) USB API to communicate internally to from

Arduino mega adk version     to Pi (as web interface)
   but then charging android is an issue
       so perhaps just use bluetooth instead

then I could keep power going to android and pi constantly

also include

Micro820

AmTel/AVR

Pics

Motion Sensor Nose

Microphone ears

Speaker Mouth

Camara Eyes
  computer vision w/opencv
     boundarys
       dilation
        and other morph operations

mucho pneumatics
 with a cheap 11gallon tank (~2 feet long by ~1 foot diameter) in the robot "chest"/torso
http://www.harborfreight.com/11-gallon-portable-air-tank-65595.html?utm_medium=email&utm_campaign=0316itc_tue&utm_source=1004&cid=mEmail_s1004_c0316itc_tue

Consider an internal movable weight for balance control while Walking