I'd recommend adding a simple client, that syncs with the site. And think about the situations under which someone wakes up: Are they definitely going to have

I'd recommend adding a simple client, that syncs with the site. And think about the situations under which someone wakes up: Are they definitely going to have internet access? Nope. Better have an offline mode. Is their computer going to be on already? Maybe not. Better give it an automatic start-on-startup option, and make sure it's lightweight enough to open in a flash. Are they going to wake up with their computer around them? Probably so, really, or at least the majority of the time. So a desktop client's a good call, because it doesn't have to be portable, and you can store detailed settings, because they're not going to be changing them over multiple computers. Also, you're a grad student in Shanghai? Wouldn't an SMS interface be well-received? I sense potential twitter partnerships! If you want to talk about this anymore, I hang out in #startups on irc.freenode.net a lot. I like your idea, I'd love to help you brainstorm more.