Zubin -- this looks very interesting and I wish you lots of success. A friend of mine recently suggested we should build such a service and I am glad to report back to him, someone has ("glad" because I was already working on my own start-up). I would suggest allowing for instantaneous deletes as well -- so as soon as the consumer opens the message, poof, it is gone -- one-time only. That was his use case scenario and we riffed on that for quite some time.
It's neat idea because people are worried about leaving digital trace behind. However, your video hardly tells about the product though-- how does it work? The video is nice (I liked the colors, logo etc), but the messaging is not strong enough to make me sign up.
Right - loved the video, the url shortner (http://ssh.sh) and the name itself (SecretSocial) - your name gives somewhat idea about yourself, as opposed to most startups these days with dropped vowels, alternate spelling, or forced '-fy' extension.
Hiya - Aquarin... ICQ, Skype et al, log everything. We don't. The privacy policy is simple: end conversation, end all data about it as well.
Additionally, I encourage you to try the service in "Sudden Death" mode with someone you know - whoever is in one of those conversations can terminate it at any time resulting in everyone losing the conversation simultaneously.
This is very different from a user simply exiting IRC or leaving an ICQ chat or having a pseudo-offline conversation on GTalk!
it launches a 1-hour conversation that allows anyone you @mention in the tweet and from that point on you are in SecretSocial-land having real-time conversations...
there is still a 140 char limit but you can post as many times as you like, it is all kept in context!