If you haven’t heard by now, Google’s mobile platform accounts for over 50 percent of the smartphone market share. In other words, half of today’s tech consumers own an Android handset. Crazy. But as manufacturers like HTC, Motorola, and Samsung continue to roll out new and advanced hardware onto the mobile landscape, there’s a cult of smartphone designers that are sweeping the Net by storm with their own Android designs. Most of us look at the incredibly attractive form factor of the Motorola Droid RAZR or the high-powered spec sheet of the Galaxy S III and wonder how can anyone top these powerhouses. After browsing through this collection of Android prototypes, you’ll be begging your favorite mobile maker to take notes. With that said, take a look at the 25 Hottest Android Concept Phones.