I can't wait.
Wow that keyboard is just too freaking cool. Like...seriously.
Up until :50 I was thinking "Meh, GS4 looks cool but I can hold off for the Galaxy S FIVE when my upgrade is available," but wow that keyboard is awesome. It'll be tough. Only problem is it's an accessory, meaning you have to drag it around with you if you want to use it. It looks cordless, but that means it either has to be charged or uses a standard battery.
If it's successful/practical enough then maybe with the Galaxy S FIVE it'll be incorporated INTO the phone.
That will be the day I will go outside, look into the sky, and shout "THE FUTURE IS NOW!!!!"
Edit: Edited to clear up confusion.
I can't wait till they release a phone with a battery that can last a week
it's the dock that has the laser keyboard apparently, not the phone