Are you driving to get somewhere, or are you driving to drive? That's the fundamental question behind BMW's Ultimate Drive -- a new app that allows iPhone and Android users to share and rate their most enjoyable routes. With this arrow in your smartphone's quiver, you can create and upload your favorite paths using Google Maps, while evaluating other user submissions based on traffic, scenery and that ever-elusive thrill factor. As CNET points out, the app won't let you upload maps from your computer, nor does it allow for Yelp-style rating
