There are many reasons why someone might want alerts sent to their desktop rather than only on the phone. For instance, my wife likes crappy music and it drives me crazy to hear it. She also gets 10 million texts per day so when she is wearing her headphones I end up hearing the text alert on her phone all day.
If she was using an Android device and a Mac or Linux computer a new application is available called Android-Notifer that would take those notifications for calls and texts and send them to the computer. The app sends notifications to the PC via Bluetooth or WiFi right now.
Future updates will bring USB as an option as well. The notifier runs as a service on Android and consumes little resources. Windows users should know that the dev site says a Windows version will be offered, “When someone volunteers to do it.”