Wanted to revive this thread now that other discussions about the PX8 and Bathys are active.
From what I have read it looks like the earliest they will be available is around mid-November. Pricing puts them above Px8, Bathys and the ML 5909. But, only they and the 5909 offer a truly passive wired mode. No mention of app based settings control. They were at CanJam SoCal, which I believe was the first time anyone could hear them (static display only at Munich High End), but it seems like not many people did choose to try them. In fairness, T+A did have the P on hand along with the HA200 at their booth to demo, so many folks probably focused on those as an opportunity to hear that TOTL endgame. Beyond that, while broke cover back in May, many people may not be aware of them because they still haven't shipped.
For those who are curious but aren't yet familiar, detailed info has been up on T+A's website for a while...
Solitaire T Product Page
Solitaire T User Manual
Personally, if the wired performance of them competes with others in the $1K or higher territory, I'll happily buy them. For me the premium is worth it to be able to have really great performance when I'm sitting in one place and paring them with an M17, Mojo2+C9, etc but also enjoy the flexibility of BT when I'm just walking around the house getting stuff done, on the plane, etc. Thereby being able to bring one do it all travel solution.