So my android phone has a really neat unlocker widget that allows me to unlock the phone directly to an app. When you power on the phone it displays a lock symbol, you touch the symbol and it expands to a larger circle with app icons on the circumference. Without removing your finger you slide and drag to the app icon that you want to launch. Once your finger is on the icon you let go and that selects the app, unlocking the phone and immediately starting the app.
I want to implement a similar widget for my control screens because they will be touch screens. For instance, a pump icon will expand to show options like start/stop/ status, or interlock conditions etc. I think this is a worthy endeavor for touchscreen applications because it adds a level of extra security against accidental control button presses without the hassle of clicking yes in an "Are you sure?" dialog.
What do you think?
