If you want your phone to obey your commands with the flick of a wrist consider using Flick Widgets, an app that brings up your volume controls or contacts list depending on which direction you flick your phone.
The app is like an expanded version of Brightness Motion but instead of just adjusting your display's brightness level you can assign different widget functions to the four flick directions (left, right, forward, and backward). One limitation is that there are currently only two available widgets to take advantage of the four directions, a volume control menu and a contact list. More options are in development (hopefully including brightness control) but the two available functions are pretty useful.
The app is free with ad-support, but there is a pro version in the works with additional widgets and an option to answer a call by flicking.