• Essentially, both of these phones are smart phones. The aspect that will differentiate the two phones will be the Gphone's wide array of Google features.  
• Google Inc. is collaborating with several phone carriers to integrate their Google services in a mobile environment.

via associatedcontent

Official Google Blog: We've officially acquired DoubleClick: "As with most mergers, there may be reductions in headcount. We expect these to take place in the U.S. and possibly in other regions as well. We know that DoubleClick is built on the strength of its people. For this reason we’ll strive to minimize the impact of this process on all of our clients and employees."