[AStrangeMorrow]

My guess is also that not all typos are equal. Should have a stricter edit version for 1-keystroke-away filtered edits (that is delete, swap or add 1 key away / replace one key away) instead of pure Levenshtein. Like Fqcebook is a more likely typo than Fjcebook but they are both edit-1

[teddyh]

Someone should make a qwertyshtein() function.