Reflection is a new Mac app that lets you use the screen mirroring feature of your iPhone 4S and iPad 2 with your Mac. It's very easy to use and will be great for giving demos, teaching, and gaming.
To use reflection, you simply install the app, connect both your Mac and iPhone 4S or iPad 2 to the same Wi-Fi network, select your Mac from the list of Airplay options from your device, and toggle the mirror switch to on. Your screen will then instantly appear on your Mac inside a frame that looks like your device. It's looks awesome.
Reflection works great and has an almost non-existant delay; however, it does seem to crash a lot. You will likely only be using Reflection while giving some sort of presentation or playing a game and crashes are unacceptable for both of these activities.
This it the first release of Reflection, and the frequent crashes make it feel like it. Having said that, Reflection has the potential of being a very useful app and I'm looking forward to future updates. I've been in some contact with the developers and they are already working hard on the next release and have more features in the works.
In the meantime, I recommend at least trying out the 10 minute trial. A single licesne will run you $14.99 and a multi-licence for 5 Macs is available for $39.99.