For Windows, Google provides USB Driver but Google USB Driver is not compatible with Mac OS and I read that anything did not need to Mac OS and Linux.
I've already set "USB Debugging ON" on my android device.
Followings are my development environment.
OS: Mac OS 10.6.8
Android Device: Google Nexus S
Android OS: 4.0.3
IDE: Eclipse SDK 3.7.2
The application I make uses camera, so I need to debug with devices.