I currently have an iPhone 6 (not the 'S' model) where, when you tap and hold an app, it starts to wiggle, so that you can then move it about on the screen. However, yesterday, when I was in my local Apple Store and playing about on the iPhone 6S and 6S+, I just couldn't get this to work?!?! Everytime I held an app, the phone wanted to go into 'Forcetouch' mode, i.e. the rest of the screen kinda blurred out and the app I was holding, would pulsate once, indicating that I needed to press harder to go into Force Touch mode, but I just couldn't get the app to wiggle (I tried countless times, on both the 6S and the 6S+), in order to move it around?!?!?! Does this work differently on the 6S and 6S+ or was I just doing something wrong??!