I have seen quite a few demos of BlackBerry 10 already but the thing that I have been most excited about is when I see RIM starting to add their classic refinements. One of the things that first drew me to the BlackBerry OS was that things were thought out. For example, if you are in an email and hit the menu button it will default on “Reply” and if you hit it again on the next screen it will default to “Send.” In short it is intuitive.
Dave pointed out this video spotted by nerdberry that shows how these refinements are coming to BlackBerry 10. This very short video below shows how you double tap on an unrecognized underlined word and you can easily add it to your dictionary or correct it.