Hi! I'm new! But intrigued enough to join...
I thought I'd add my two cents and help add context to the discussion.
Much like @lamu my main problem is with diacritics, rather than actual letters. I've lived in several countries, and keyboards have been a constant issue with me. I'm British, but I now live in Spain and have had lots of fun with French and Arabic keyboards along the way. My sister regularly uses a German keyboard.
Changing layout on a daily basis was a big problem for me when I first moved to Spain. My work computer was ISO Spanish layout, and my main home computer was Apple British English (different, for some reason, from the Windows UK layout). And this wasn't because of the letters, but the diacritics. It turns out, for example, that () are shifted one key over on the Spanish keyboard. The ’ smart key on the Spanish layout (used to place acute accents on vowels, such as áéíóú) is in the sample place as the apostrophe ' on the British layout. This meant I ended up using the wrong character often on words like isn't and weren't. It made typing passwords a pain (we all use passwords that don't have letters in them, right?) and it severely impacted my typing speed, as I could not rely on muscle memory. I never learned to touch type, and I suspect this is the reason. It's also not just the key caps, it's key position. American keyboards have a different number of keys to European keyboards. The return key is a diffferent shape due to the layout requirements. Some keys have been shifted to the left or the right as a result. I'm not saying Eve should accommodate this, but keep in mind that just changing the print on a fixed key layout is a compromise that some will not be happy with.
That being said the Ctrl vs Fn key position is enough to rile people up on keyboard choice. So don't be surprised by the vehemence with which people will defend their layout.
V will not be the only device I ever connect to the world with. I do have work keyboards I have to deal with. I have now standardised as ISO Spanish in my life, despite it's annoyances for programming (especially the <> key!) and I really don't want to go back to having two layouts in my life.
I work in a multinational company. Keyboards, and especially laptop purchasing is a problem because people expect and require their own layout. But it aids productivity no end.
Also, this is a detachable device, it would make no sense to have one layout on the on-screen keyboard and a different layout on the physical keyboard. I mention it especially for the AZERTY and QWERTZ users out there.
Apple tried to do this. For about a year, the only available physical keyboard layout for the iPad Pro Smart Cover was the US English one. Apple lost a lot of credibility outside the US for that decision, and people tended to buy the laptop and attach a third party keyboard instead - Apple themselves offered a Logitech-designed one on their website. They finally capitulated and offer multiple keyboards, but people still smart from that decision.
Anyway, as well as my +1 on the poll, I thought I'd add a bit more context here... so, yes, Hello!