I think a "Jolly good going", a pint at the pub and a pat on the back is in order here. Those are great numbers - it really seems like you made something people want.
It's really hard for us to judge what kind of buy-in, etc. you'll have without knowing what you're offering. For porn it's 0,1% or less - for Rolls Royce engines it's 50%.
I would use the momentum you have and compose a mail telling your beta applicants, and potential customers, that everything is going much better than you could ever hope to excpect, and that you're happy that you can solve so many problems for so many people yada yada, and that you don't have space for more betatesters but will soon be offfering the real deal, and will send them an e-mail when this happens. And don't wait too long, they'll have forgotten about it in a month.
It's really hard for us to judge what kind of buy-in, etc. you'll have without knowing what you're offering. For porn it's 0,1% or less - for Rolls Royce engines it's 50%.
I would use the momentum you have and compose a mail telling your beta applicants, and potential customers, that everything is going much better than you could ever hope to excpect, and that you're happy that you can solve so many problems for so many people yada yada, and that you don't have space for more betatesters but will soon be offfering the real deal, and will send them an e-mail when this happens. And don't wait too long, they'll have forgotten about it in a month.