Enthusiastic comments are always appreciated!
By the way, even for those people who are unable to get a prototype soon you still have the opportunity to use the simulator. We very much appreciate feedback and especially bug reports. I think we're usually fairly quick at fixing bugs, so if you find something that doesn't work as expected do let us know. (Bug reports can be in a new discussion on these forums, or even better would be on the GitLab page, although you'll need to set up an account for that.)
And for those who appreciate a physical calculator (probably all of us!) you can flash your DM42 to a WP43. Don't worry, you can always get back by flashing the DM42PGM from SwissMicros. The key layout is different, so you might need to print out the layout for a separate piece of paper or apply stickers to the keys.
The vast majority of the functionality is now in place, and although we are still making many improvements all the time, you can expect most things to work.