Google announced that they are replacing their old smartphone crawler with a new one to improve smartphone specific search results. This act will allow for Google to index more smartphone websites and pages.
This new Googlebot will seek out mobile responsive websites, making it more imperative that websites be optimized for mobile and tablet devices. Google's intent is to deliver results that are not just semantically relevant to users, but also structurally and contextually relevant. Google can increase relevancy for users by changing the organic and paid search results for mobile devices. The new crawler should be available to the marketplace in 3 to 4 weeks.
The new mobile-focused Googlebot:
Mozilla/5.0 (iPhone; CPU iPhone OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25 (compatible; <strong>Googlebot</strong>/2.1; +https://www.google.com/bot.html)
The old mobile crawler:
Mozilla/5.0 (iPhone; CPU iPhone OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25 (compatible; <strong>Googlebot-Mobile</strong>/2.1; +https://www.google.com/bot.html)