>" The second letter 'B' the right side. The reason this is an issue is because standard touch-typing technique is to hit the letter 'B' with the left hand. Therefore, it does not make sense to have second 'B' on the right side. "

Not everyone types the same way, and many people type B with their right index finger, so that's why some have two B keys. these are custom boards, so you can have whatever you want in that position, and if you look at enough boards, you will see many do not have the second B there.

As for the 6, it's just for aesthetics... which I admit, is not where it should be technically, but most people who need to touchtype numbers quickly and frequently would just use a numpad. I only actually use the number keys casually if I need to write the occasional number is an otherwise text heavy piece. For data entry, or spreadsheet use etc, I will use a numpad. I never bothered to learn touchtyping for the number row (apart from the commonly used modifiers)... it just didn't seem important.... just use a numpad... I mean, that's what they're for :) Also... 6 is closer to the left hand than right, so the "correct" way to type 6 is actually fucking stupid.

[edit] I'd hate to see this guy with 40s LOL