I found an interesting article and video from CBS 5 in Green Bay. It's about an Experimental Smart Home for seniors in Gainsville, Florida. The article states (this is a direct transcript of the video, that's why the text is so choppy):

Seventy-Eight-Year-Old Minette Hendler Is A Study Volunteer Who'll Live In The House To Test Its Support Systems.

Minette Hendler/Study Volunteer
"It's The House Taking Care Of Me. I'm Not Really Alone."

Monitors Communicate With Her, Alert Her To Mail Delivery And Show Her Who's At The Door.

Her Voice Commands Turn Off Lights And Lower Shades.

Sensors Make Meal Preparation Easier.

"Smart" Floors Detect Where She's Walking.

Read Smart House at CBS5

Click on the "Lisa Malak Reports" link on the right of the article to watch a short video of the home. It's pretty interesting stuff.