LOL! Tough to keep up the hype, when there's been zero inclination of an ETA. I'm hoping this summer but not counting on it. In comparison, PSIO was sold a few years ago with it being fairly compatible and all features working. Since they, they've made continual firmware fixes after user testing. There's so many damn games there's no way to test them all in Beta. Problems will come up. I'm not sure what the Prof's threshold is though.

I really want to preorder, no matter how long it takes. My PSIO preorder in june 2017 shipped on september 2018. That is how bad I want my ODEs.
As for the comparison, to be fair, considering that the PSIO started selling in december 2015, after being worked on for 5 years (as per their FAQ), and only few people were able to get their hands on it until recently. very small batches. If prof. abrasive manages to make better production quantities, I'd say they fared better.
In any case, for those who don't wish to wait, there's the fenrir. I'm going to wait, I don't have any nostalgia for the Saturn which makes it easier for me.