Yeap:
998 shifter locked up
You probably have to take the left side engine cover off, and pop the selector fork free if it's wedged like the picture in my post.
This happens because the adjustment for the range of shift motion gets screwed up. Basically, the bolts that hold it tight get loose and allow it to get out of whack.
Follow Mark's (Ducshop) advice or take it to the dealer and let them put the cute little tool on it and re-align it.
Mine did it twice but didn't do it again once I realized it just needed adjustment. I did it, and it's been fine since.