Like Andrew, I’ve been involved in the Tangler closed beta for a few months now. While I’ve not been using it nearly as much as I could have, it’s demonstrably a great tool and one which I’m growing more fond of. I think it has a lot of potential and I’m using it more each day.
Over at thoughtglue, I’ve posted an announcement of the public beta for readers there. thoughtglue will also post a full review in the next week or so.

Hey, thanks for the blog love.
Just picking up pace but enjoying it.
See you in the Tangle. Mick