Whether you're an existing or prospecting Sprint customer, the carrier's new big thing is now on sale. Priced at a whopping $300 with a two-year service agreement, the Samsung Galaxy Note II is the biggest smartphone to hit Sprint since the Hitachi G1000. As a reminder, the Now Network's Note II features an unbranded home button, a 5.5-inch 1,280 x 720 HD Super AMOLED display, a 1.6GHz qua