[b5]

While you're strictly and literally correct, I think you're missing the point. The vertical position of the Backspace/Delete key is still the same on US-ANSI and EU-ISO.

The advantage of the Unix layout is that it brings the Backspace/Delete key down a row, to be opposite the Tab key. That puts it within the main bank of keys, and within easier reach -- a definite benefit for such a frequently used key.

[jandrese]

More to the point, I've usually found those double tall Enter keys to be a detriment because if you hit it on the bottom half like a regular Enter key sometimes it binds up and doesn't register.

It's a waste of space IMHO and I tend to shun any keyboard that uses it. Especially when it shoves the |\ key to some really inaccessible location, like to the right of the right shift key or obnoxiously puts it where the backspace key should be and makes backspace even harder to reach.