Undocumented Spell Check Features Found on the iPad
The iPad shipped with some new spell checking features, like the red underline found in the Mac OS, and word replacement. We’ve found something not documented to further help users with their spell checking on the iPad. With auto-correct enabled, when you spell a word wrong, the iPad displays a popup with the correct spelling, and as with the iPhone, you simply tap the spacebar to accept. However, if you tap the delete key immediately after the corrected word, it will show a popup with your original spelling.
Similarly, if you misspell a word that does not get auto-corrected and you see the red underline, you can tap delete to see a popup with word replacement options.
These spelling options may not super fast options for the casual user, but prove to be useful when working on longer bits of text on your iPad.