Unfortunately, I am not one who is able to adapt so easily to a differently formatted keyboard. While a keyboard like this would provide ultimate portability, I found it too difficult to use.
The G and the B key are smaller than normal, while the H and the V key are larger. I understand that due to the folding design it had to be this way, but it gets very annoying very fast. Combine that with the minuscule delete key (and a second one where the ctrl key usually is; another annoying design) makes for a very difficult and tiring typing session.
But in the end, it's not the manufacturer's fault; it's simply impossible to create a portable keyboard that'll be as comfortable as a regular keyboard.
In the end, I just carry around the Apple bluetooth keyboard. It's not that much heavier (half a pound maybe) and there are VERY few situations where I don't have a bag that's too small for the keyboard. While the thought of pulling out my iPhone and a portable keyboard from my pockets discretely and start typing away is pretty awesome, the technology's just not there yet.
In conclusion; if you want to get serious work done when you're out and about, just get a full-sized keyboard (Apple bluetooth keyboard). I doubt people would find it that much harder to carry an extra 0.5 pounds, and I seriously doubt (other than purses of course, but even then) that people carry bags that cannot fit the Apple bluetooth keyboard.