Motorola and Verizon Wireless on Wednesday unveiled the Droid, a smartphone that will test whether the companies can use software from Google to chip away at the dominance of Apple's iPhone. The Droid, a svelte slider with a full keyboard and an expansive touchscreen, will be available at Verizon Wireless Nov. 6 for $199.99 after a $100 mail-in rebate. Customers have to sign up for a two-year contract and data plan. Success of the new phone, which is being launched in a competitive holiday season, is crucial for Motorola, where co-Chief Executive Sanjay Jha has placed a heavy bet on...