Looking at different standalone or notebook keyboards, you'll notice a difference in key sizes and orientation. For some it's not so critical, while for others, like the Enter (Return) key, it is. Some versions are narrow (vertical) and others wide (horizontal).
Does anybody know of any research or papers about why some manufacturers are so set in their key size decisions?
For example, I prefer the wide variant and because of that, I'll probably never buy a Toshiba notebook (they almost always use the narrow version).
Personally I find it an interesting question because when offering such an expensive device, they lose me just because they're stuck on such a tiny characteristic.