I don't know if this has been pointed out or discussed before...
On previous versions of the Android app, if one wanted a split screen to view two different resources, the grey quarter/semi-circle would be tapped-and-held then slid to whatever position was desired.
Last night, however, as I tried to demonstrate this feature to my wife, I would tap-and-hold but as I began to slide the quarter/semi-circle the dialog box for syncing the two panes would immediately appear (and it was impossible to slide the q/s-circle to any position). Later I discovered that the only way I could split the screen was to double tap the q/s-c resulting in an immediate 50-50 split. Surely, this isn't the way this feature is supposed to work, is it? Or did I miss the secret memo with the new instructions?
Samsung Note 10.1 w/ Jellybean 4.1.2 (mine)
Samsung Tab 2 10.1 w/ Jellybean 4.1.1 (hers)