As I see it:
- Thickness might be an issue
- Font being centered and big is disturbing
- G & H orange (or red, to match the already-existing GeekHack key) keys might be interesting... see the GH spacesaver to see how it looks like
- An alternative to colored G & H would be to have them on F & J, for obvious "home-running"
- By "International keys" I suppose you mean differences between ANSI and ISO ?
Speaking of ISO, I'm still dreaming about some french set, and I guess it will stay a dream.
That made me think about something, though: how much would it cost to "separate" full sets in two ?
The idea would be to have the keys that are common in just about every ANSI and ISO set (ESC, F keys, modifiers, numpad and so on) in one part, and the rest, which is region-specific (maybe including enter key), in another part.
That way it might be easier for people needing non-US sets to prepare some order for them, without the need to ask for a full set.
Also, that would mean the non-region-specific part can be bought cheaper as the volume will be higher.
Thoughts (at least on that separating part) ?