This is coming by way of Russel Shaw over at ZDnet, who always loves to troll for the most recent RIM patents. The patent in question seems to relate to improved UI options for BlackBerrys, specifically in providing users with more information about what functions are associated with their keypad keys. The most obvious example is a visual display of which keypad you have people in your address book mapped to for speed-dial, but the possibilities for this are endless. Not a big deal, but pretty cool nonetheless.
You can go here to read the full report, but it’s an awkward combo of legalese and tech mumbo jumbo, so I’d advise against it.