Or... we can just do ABC XYZ.
It doesn't really help win anyone over by just stubbornly repeating your preferences. Or maybe it does, I don't really know.. but it probably shouldn't.
People have real issues with ABXY, they're not just aesthetic, you shouldn't pretend they don't exist.
Likewise, people have real issues with Greek letters (take your pick), they're not just aesthetic, and others shouldn't pretend they don't exist.
I doubt we're really going to get anywhere without a poll, but first it'd be good if ED could let everyone know if this should even be open to discussion.
Nonetheless, my personal rebuttal to _wb_'s problems with my suggestion:
Looks like just a "weird font" for ABXY; people (including devs) will probably often not bother to use the αβχγ symbols so confusion with keyboard keys ABXY will tend to remain
The question is, what would these people do with other symbols? I think they'd avoid other Greek letters too (for example, if I wanted them in DraStic I have to modify my font and use special codes for them, which I'd probably do but it is actual work) and potentially spell them or use weird ASCII characters which could be more confusing.
It is not a logical progression in the Greek alphabet; αβγδ would make more sense (but has other problems)
IMO not a big deal, since people don't tend to think much about the lexicographical progression of Greek letters. That's not how they're generally picked as symbols.
If you extend it to 6 buttons, you get the same problem as with ABXY (no logical way to extend the sequence)
Doesn't seem like a big deal either, and part of me would rather have the buttons named something else anyway just to separate them from a primary four that forms the main set of Pandora buttons and what's used for most other platforms. As it is right now we don't actually know what physical layout ED has in mind so it's hard to say what really fits best, if you had this for example:
A
X Y z
B
c
It wouldn't be unnatural at all ;p
I don't really like the "handwritten" look of lowercase Greek letters, the capital letters look more solid/robust/professional to me (aesthetically)
That is of course purely subjective, personally I like the look of the more stylized and curved lowercase letters more.