All the goodies...
Appliances
TV's, coffee makers, powerbars, you name it... anything that you simply want to power on or off.
Lighting
Lights can be turned on/off or dimmed to any level. Make sure that lights are off when you're not home, or set the mood when watching a movie.
Door Locks
Oh no, you can't find your house keys? Good thing you can unlock your front door from your phone!
Thermostats
Keep your heating and cooling costs down. More importantly, never come home to a chilly house ever again. Toasty.
Groups
Organize devices into groups however you want (e.g. Kitchen, Lighting, etc.) so that you can find them faster.
Scenes
Create custom actions that do whatever you want - whenever you want. Turn off a bunch of lights with one click or even on a set schedule.