I've had Comcast's product since summer. It's cheaper than my old ADT service that offered nothing but a number pad - and I now can monitor video, pictures, turn on/off lights, etc - all for $40/month.
From that picture - looks like Cox will use the same Gateway. -- "ONE team - ONE city - ONE dream!!"
The exact same thing has been offered by Canadian cable companies for a while now and it's quite a bit cheaper. I'm surprised, because it's usually the opposite.
Then again, the home security market up here seems to be a lot more competitive than it is in the US. Constant TV commercials for it on Canadian TV channels, etc.