Comment by al_borland

1. This is generally from holding in the lock button (the upper button on the right side). Maybe you're accidentally holding it in while gripping the phone. Some people tend to rest their thumb there and might start holding it on accident.

4. The top vs bottom search boxes drive me nuts. I still instinctively reach for the top of the screen for search, so going to the bottom is weird. The move to the bottom is also a symptom of the phones being too large, so they have to move all the UI users interact with down to the bottom. Not being 100% consistent with it makes it hard to retrain my habits around it.