This app does exactly what it should do and does it incredibly well. The wifi connectivity significantly increases the range over what Bluetooth would offer. Control is smooth and lag-free and I have only experienced minor connectivity issues when I used multitasking to jump between apps while using this one.
Simply said, if you need a PowerPoint remote and you have an iOS device, you need to buy this app.
Asburkum about i-Clickr Remote for PowerPoint, v1.7.1