Is there any current (clamshell) PDA out there that has a keyboard which is comparable to the Zaurus keyboards?

The main reason why I'm currently trying to resurrect my Zaurus SL-C1000 is its keyboard that allows for eyes-free two-thumb typing while on the go. That's absolutely great for taking notes during meetings, adding tasks/events, etc., without having to focus on the device.

So far, neither the Gemini PDA nor the (still upcoming) Dragonbox Pyra seem to have keyboards which are suited for my use case.

Any opinions on this topic?