[DecayingOrganic]

I signed up just over a month ago and from what I've seen, it looks like you won't have to wait more than two months to get your invite. A lot of people who signed up around the same time as me have already received their invites, so it looks like they're speeding things up and getting ready for a public launch soon.

[TrickyRick]

Consider yourself lucky, I signed up in May and I'm still waiting.

[m_kos]

I signed up on April 8th and I am still waiting too.