So you use your iPhone to do everything? Why not use it as a spectrum analyzer and power meter? WiPry is just the accessory to make that happen. It lets you use your iPhone or iPad to make power and frequency measurements. The device is quite compact, so you can carry it around easily.
You can measure rise and fall time, duty cycle and peak power, and examine 2.4GHz ISM band used by WiFi, Bluetooth, and other networks. This tool could be quite useful to cellular communication planners, RF engineers, WiFi technicians, and geeks in general. Too bad it does not support Android devices.