This document discusses a wireless screen mirroring app called Splashtop that allows users to control their desktop computer from an iPad. It allows teachers to circulate around the classroom while still controlling presentations, opening links and apps. The app also provides digital annotation tools like highlighting and drawing on documents. Teachers can use it to display questions to students and have them respond directly on the iPad. Setup only requires downloading free apps to the desktop and iPad, and the iPad then detects nearby computers running the app to connect to wirelessly.