I've been waiting "in line" to try x.ai for quite a while now. I get teaser e-mails. I go check my place in line. Still 249, the same as when I signed up. They don't say what number group they are up to.
http://imgur.com/a/tlWqM
But then in the e-mail I may get an invite for a Professional account and therefore skip the line.
http://imgur.com/a/6uUX9
While I thought that x.ai would be extremely beneficial, I sort of feel like this was just a marketing stunt to hype interest while they figure out how to actually launch it at a large scale.