how do I remove the Logos 4 split screen on my iPhone 4s?
Slide the little gray semi-circle at the right side of the screen either all the way up or all the way down.
Also, if you push and hold it for a second, you'll get the window for linking and syncing the panels in 2-panel mode.
Richard - Welcome to the forums!
The semi-circle Eric referred to is shown in the screen shot below:
