Android: Want to start your music app every time you plug in your headphones? Want to start tethering as soon as you hook up the USB cable? Plug In Launcher will auto-start any app you want whenever you plug something in.
Plug In Launcher is super simple to use: just open it up and hit the USB or Headset tab at the top. Then, select an app to launch whenever you plug in that cable, and you're good to go! From now on, whenever you plug in your USB cable, you can have your phone automatically launch your tethering app, your clock app, or whatever else you want. Hit the link to check it out.
Plug In Launcher is a free download for Android devices.