At the bottom of the notifications overlay, there are 5 icons. Two are easy enough to guess: The first one is WiFi. The last one is settings. Technical users will understand that the 3rd one is bluetooth... I'm not even sure. I have no idea what the second one (vertical arrows) and fourth one (a leaf?) are about. Also, touching the leaf (?) caused the WiFi to get disconnected. That could annoy some users who were trying to explore their phone but didn't want to disconnect.
Patryk told me he has new icons in the works.