Damn, this looks awesome. I'll have to pick one up when they're generally available. Thanks for the tip.

edit: Actually this seems to have an LCD screen like their other models, rather than the DM30's e-ink, which is a shame. Still, it might be better than the alternatives.

I agree that It is a shame that they discontinued the DM30's e-ink display, but the DM250's display is transreflective, which is a reasonably good alternative for people prone to eye strain on backlit displays. (Because it's transreflective, use of the backlight is completely optional.)

Oh, that's actually good to know, thanks. My only experience with a nice modern transreflective display is (IIUC) the Playdate, which looks great.

Since you seem to know about these things, do you have any suggestion(s) for where to buy a DM250, preferably with a US keyboard layout? Somebody elsewhere in this thread said that exists, but I couldn't find any mention of it myself.

The Playdate uses a Sharp Memory LCD, which is actually purely reflective, so the Playdate screen will be a little nicer. (The Pomera can't use the same tech because Sharp doesn't yet make a Memory LCD that large; also, parts of the Pomera interface use some greyscale.)

Amazon JP will start shipping the DM250 at the end of this month. The device only has one keyboard option as far as I know, but it comes with decals to switch it to a US layout. The layout is a bit weird (e.g., the enter key is split in two, which both perform the enter function) but probably ok, I'm guessing.

Wow. That looks amazing. A US keyboard option would be even better but not a deal killer for me.

Looks like they're offering a US keyboard option.

Awesome! I couldn’t find it though? Any chance you have a link?

Scroll down until you see "US配列を追加" ("added US layout").