Mobi and microphones

Our county bought Mobi's for every classroom in the district. We also all got a microphone system that works through our ceilings. They are amazing! The microphone has changed my whole style of teaching. It is very easy to get the students attention, because they can even hear me whisper! However, you do have to remember to turn it off when having a private conversation. The mobi's have been great! I know longer have to write on the dry erase board. I in fact, barely do! It does a take a little while to get used to writing on the mobi. At first it looks like how you sign your name on the pen pads at stores. Has anyone ever used one and have a lesson they would like to share? I use mine mainly with teaching hand writing and PowerPoints. I would love some new ideas!!