I've been using Apple products since years and still using MacBook Pro as main computer. I was using iPad 2 also before but didn't find useful while having a laptop so sold it. I'm working on a mobile application and already released for Android platform so I've been thinking about getting an iOS device but i would rather wait iPhone 7 (or whatever). My options now are iPod Touch 6 or iPad Mini 4 but maybe it will be better to use small screen device as the application is developed for phones. What do you suggest?