Originally Posted by drexappeal
Just want to clarify, you mean a visual notification or audio? - EDIT- Nevermind, just saw your post from yesterday. I think you're right. I didn't have the Note 1, so couldn't compare, but I've never noticed a visual notification being available for S-pen removal.
It's a visual cue. The Note 10.1 has this. Remove the S Pen and it will put a pen icon in the notification bar. Pull down the notification screen and press on the pen will bring you directly to the S Pen settings. I think its on this because there is no feature to remind you that the pen is detached from the device (unlike the Note 2).