Cortana is awesome, but anyone noticed that Cortana has two voices? There is a new one and the old tell me one. I'll show you how I figured it out. i put something on my calendar for later today and then asked Cortana what I have scheduled, and she said i found so and so appointment '. When she says 'i found' she talks in her new voice, and when she reads out your appointment name, she talks in the old 'tellme' voice. Anyone noticed that?
And another thing, wp8.1 has new animations compared to wp8. The way the screen transitions from one screen to the next, (for example, if you go into settings from the home screen) has changed. Instead of the imaginary screen 'hinge' being at the left side of the screen, it is more often than not in the middle now, and every screen flips from the middle. Anyone noticed that? I really like these new animations and wp8.1 is also generally faster than wp8, and the snappyness is also more
Sorry for going off topic