An important and extremely useful tool available to developers is the ability to set up debugging for our wearable apps running on our wearable device. We have the ability to run debug commands from our development machine to troubleshoot our wearable apps and have any debug output from the wearable be sent over to the handheld, which in turn must be connected to the development machine. Some setup is required in order to accomplish this. The general connectivity between devices is as shown in the following diagram:

The greatest payoff here is that we don't need to run two separate USB connections from the development machine—one to the handheld and the other to the wearable device. Instead, we can deploy and debug code straight to the handheld device from the development machine using a Bluetooth connection. This becomes especially helpful when such troubleshooting needs to be performed repetitively during development. Without this feature, we would have to endure...