From what I have read on it, I like the idea of having a folder on my phone, that I can click on and all the programs that are within that folder reveal themselves.
If what I understand to be correct, that would be a quality that would attract me to the phone.
You will find the folder idea on almost any phone. Blackberry, Apple and Android all have them, and have had them for some time. I'd be surprised if Windows didn't have them (I don't know).