$ GEOBEE CHALLENGE: For the young, aspiring explorer (or geo-curious teacher and parent), National Geographic has wound its popular National Geographic Bee into an app available on iOS, Android, and Nook Color. The 2010 MOBI Award Finalist for Best Mobile Game includes a multiple choice round from over 1300 Bee questions, a map challenge that includes over 1000 locations, and a Where's Waldo style photo round where users must identify photo objects without knowing where and what the photo represents.