Toggle Jump

[Nabiri]

Do you know that it's pointless? I mean as far as we know it doesn't effect battle.

I'd personally prefer to see someone jump up a ledge than hover up a ledge. I'll never understand why people are so against jumping in a game with so many ledges.

Yoshida-san did say in one of the interviews that it's just there to be able to jump and will have no place in battle. ^^;

Ah, here it is, from Eorzeapedia's interview:

"Yoshida tapped on the space bar and his male miqo’te jumped up (though due to the nature of the current version there wasn’t any animation for it. There are no plans for using the jump for any elements of gameplay it’s just there for those that want to jump. You won’t be able to jump to avoid Ifrit’s attacks or anything."

It really was just added to shut people up. Just...so people can jump... just to jump. Have fun bouncing everyone. >.>
(I wouldn't mind an option to turn it off and not have to see useless bouncing).

Edit: Apologies, someone already posted the quote. :3
The bolded and underlined part sounds like platforming is out as well.