Cobalt sim exists. There was also a phone given to some PalmOS developers with P...

Cobalt sim exists. There was also a phone given to some PalmOS developers with PalmOS 6.1 [1]. Internally at Palm Tungsten T3 devices were used to develop cobalt. A few of them "escaped" Palm running 6.1.1. [2] and have been seen outside.

[1] https://www.palminfocenter.com/news/7874/palm-os-cobalt-phon...

[2] https://www.reddit.com/r/Palm/comments/cjx9d9/palmos_61_coba...