Here's one I just came across...it's a take-off on the ability to swipe the . or , keys to get ' or ".
When you're on the .?123 view of your keyboard, you can swipe the - to get an _ or you can press-and-hold the - to see 3 choices -hyphen, underscore, or bullet. You can also press-and-hold many other keys from this view. For instance, press-and-hold the double-quotes to choose open/close double-quotes. Same for single-quotes. You can press-and-hold the currency key to choose other currencies. The period key can be swiped to give ... ? and ! can be swiped to give the upside-down version of these characters. Swipe 0 to get the degrees symbol. Swipe the ampersand to get the section symbol.
For that matter, many of the letters can also be press-and-held to get non-english variations of each letter with accents etc on them...
When you're on the .?123 view of your keyboard, you can swipe the - to get an _ or you can press-and-hold the - to see 3 choices -hyphen, underscore, or bullet. You can also press-and-hold many other keys from this view. For instance, press-and-hold the double-quotes to choose open/close double-quotes. Same for single-quotes. You can press-and-hold the currency key to choose other currencies. The period key can be swiped to give ... ? and ! can be swiped to give the upside-down version of these characters. Swipe 0 to get the degrees symbol. Swipe the ampersand to get the section symbol.
For that matter, many of the letters can also be press-and-held to get non-english variations of each letter with accents etc on them...