I hope people don't get too hung up on the numbers thing to miss out on the great advice you give. With all the factors that contribute to a startups success, I think this post really nails some critical ones:
- Create a list of people interested before you launch
- Be proactive with support, consider it a sales tool
- Have a great first use experience, that's when people are deciding to use your system.
Great post and well done on your success so far.