Microsoft Teams is now Generally Available - Yehhh
Microsoft Teams is now Generally Available and so will mean you can start to use in your Office 365 Teams. If you want to read more check out the Office blog on the release.
PS I put some Microsoft Teams training links on a blog a few months back.
You can get to the training links here https://blogs.technet.microsoft.com/stevemoore/2016/11/16/microsoft-teams-training-content-starting-to-come-out/