After iPhone, we should be prepared for... gPhone(s). According to The Wall Street Journal ("Google Pushes Tailored Phones
To Win Lucrative Ad Market" article), "The company, which has made billions of dollars in Web advertising on computers, is courting wireless operators to carry handsets customized to Google products, including its search engine, email and a new mobile Web browser, say people familiar with the plans. It wants to capture a big chunk of the fast-growing market for ads on cellphones." For wireless operators, the plans are a double-edged sword - on the one hand they will sell more data packages to subscribers, on the other hand they may lose control over the mobile-ad market ("What's interesting about the ads in the mobile phone is that they are twice as profitable or more than the nonmobile phone ads because they're more personal" said Google Chief Executive Eric Schmidt).
Google devices will have cameras for photo and video, built-in Wi-Fi, possibly 3G and GPS.

I wonder if people will accept a lot of advertisements in mobile world...