Verizon Wireless (NYSE:VZ) and Samsung announced that the Droid Charge, Verizon's second LTE smartphone, will go on sale April 28 for $300 with a two-year agreement. Verizon is still offering unlimited data for $30 a month with the Charge, which will also come with a free Mobile Hotspot feature for a limited time, allowing LTE connections with up to 10 Wi-Fi-ready devices or five 3G CDMA devices. Article