QNX it's another Unix in the end any the Photon GUI it's nothing odd to any KDE/Windows 2000 user.
Smalltalk has issues on exporting your software to be run under a standalone way.
On Interlisp, there's Mezzano, a Common Lisp OS, but it needs some tweaks and optimizations.
Oberon UI wise it's the same as Acme under p9/9front/p9port. On Inferno, 9front and Go superseded it in some ideas.
