Yeah the difference from an Android phone with AMOLED + Standby Screen (that they've finally caught up with) would be the form factor but also I'm assuming that they'd customise the multitasker/home setup to emulate the N9's swipe UI as closely as possible, which would be amazing. Plus having a swipe UI is really helped out by having the curved body edges and the screen that flows in - it feels much more natural on an old N9 than a Jolla C for example.