Free Wake-up Call

I am not sure how useful this is but I found a website that allows you to send yourself a wake-up call and when you answer the call you will hear a message that you type to yourself. Again, if you know how to set an alarm on your phone this is really usless...however, if you know you have a meeting that you know will go one forever you might want to have this webpage call you so you can get up an leave. Check it out...useless, yet potential.