It's shaping up to be a busy month for Pandigital. Two days after we spotted the Nova at Best Buy, the astronomically-inclined company has decided to officially unveil the Android tablet alongside the Planet and Star, with a fourth "flagship" device slated for release in September. Each of the three slates is powered by an A9 Cortex processor, and boasts a seven-inch touchscreen display (800x600 resoluti
