TAU seems to be a legit project. With the team having their corresponding profile links. Hoping that the suite for these development tools are not that expensive if you want to use them.
But what's with the LAMDEN name? But using TAU as symbol?
More of a stylistic thing. Lamden is the name of the project, while Tau is the name of the cryptocurrency. Because the project is comprised of multiple pieces apart from the crypto itself, we wanted to distinguish the two so it was easier to differentiate between them in conversation.
Also, all the tools are open-source so they are completely free to use.
Stuart