Hello everyone! 
I'd like to share my latest project with you. I wanted to control a Pan&Tilt system from my mobile phone.
Using:
2 Servos (Pan & Tilt)
1 Arduino Duemilanove
1 Processing Application (running in the computer)
1 Mobile Processing Application (running in the mobile phone)
All the Source-code here: http://ricardo-dias.com/node/126