All iOS - iPhone, iPad, iPod touch, Apple TV &...
So here's how it goes down:
1) I start a note on my iPhone 4 (iOS 5)
2) I stop writing the note to look something up... the little progress circle starts up
3) I go back into the same note, and make changes
4) I stop, and the progress circle starts up again
5) repeat
6) When Mail checks for...