The trouble is this is for teams, you kinda have to have a team. We wanted to gauge interest so we've done it this way.
If we can we'll go live for collections of people (if there are 2 or 3 people from the same company email domain) this week or next.
I had three guys from my team sign up so we could test it out, and only after signing up did we find out that it's not live yet.
I have seen this strategy recommended to gauge interest, but have always been wary of doing it myself (for exactly this reason: people being like "wtf? this isn't real?").
It is probably one of those things that should be done, even if it makes you uncomfortable.
And yes. I will publish results later in the week.