Sleep.FM – social networking for sleeping.  Well really alarm clocking.  You can record custom wake up messages for friends, family, network.  I know it’s changing more and more, but I don’t know many people out of college that sleep with a running computer next to their bed.  Though I can see this being used by parents to send their college (and I suppose high school) attending slacker kids a nice wake up message or hell, even a “You should be studying” message at random times.  And then of course this software would be quickly banished from all college computers because college kids are dumb, but not that kind of dumb.