Exciting dude! I'm in the same position. I've got 57 subscribers (probably 7 from friends, ha!) already on my web app, and it hasn't even launched[1] (psst - we're launching tomorrow). I was excited to learn that the latter part of sign-ups included people I had never heard of. One of them being a former Olympic silver medalist diver who does triathlons that signed up! That's a pretty cool feeling.

[1] - http://www.competehub.com