Microsoft To Patent Page Up/Page Down Functions

I don’t know what the boffins at Microsoft are smoking, but they have apparently filed for and received a patent that is tantamount to Page Up/Page Down functionality. According to the patent’s own words, it covers a “method and system for navigating paginated content in page-based increments,” with an example of pressing either Page Up or Page Down keys to navigate between the next or previous page. Interesting bit of news, but no way will it be revolutionary. What do you think Microsoft has up their sleeves with this patent?