Anyway, AirDroid is awesome.
There are advantages to using AirDroid over a USB connection: for instance, it's much faster than a wireless connection and your data doesn't travel over your wireless network, and that's obviously safer.
So, I created this couple very basic tray/menu apps: one for OS X, one for Windows. Maybe one for Linux is your ask for it.
All it does it make AirDroid work over the USB cable.
Note that you will need to enable USB debugging on your device. Furthermore, on Windows, you will need to install your manufacturer's USB drivers.
Get your free app at http://nexus.zteo.com/projects/beta/