Miguel Helft October 11, 2007, New York Times For more than two years, a large group of engineers at Google have been working in secret on a mobile-phone project. As word of their efforts has trickled out, expectations in the tech world for what has been called the Google phone, or GPhone, have risen, the way they do for Apple loyalists before a speech by Steve Jobs. But the GPhone is not likely to be the second coming of the iPhone and Google’s goals are very different from Apple’s. Google wants to extend its dominance of online advertising to the mobile internet, a small market today but one that is expected to grow rapidly. It hopes to persuade wireless carriers and mobile-phone makers to offer phones based on its software, according to people briefed on the project.