A sink I would love to have:  the soap, water, and air-dryer are all contained within the bowl, so no messy slopping of soap or water or soapy water.  The other is the faucet-connected-to-the-flusher concept again, only with the sink also connected to the toilet.  Space considerations are definitely being addressed here.

That reminds me, I saw an ad for office space for rent today--$500 a month for a 3' by 6' office.  A complete office, with a desk and chair and door for privacy and a window you can jump out of it the claustrophobia gets to be too much.  Wow.  The chair would certainly have to be a swivel type or you would have to clamber over the back of it in order to sit down.