"This could dramatically change search results in some cases," said Olds. "It might allow a mobile-optimized second-tier player to get a jump on larger competitors who have not configured their site for mobile yet. We'll probably hear about specific cases as the new algorithm comes into broad usage."
It's all about reward and punishment for websites, according to Karsten Weide, an analyst with IDC. For websites that have been optimized for mobile devices, this will be a great change. For sites that have not, it's bad news.
Most mobile users will not notice an obvious change, she added, but it will be a big deal for Google itself. "It should give [Google] better performance for ever more frequent mobile users, therefore more traffic and therefore more ad sales," Weide explained.
Forrester's Colburn foresees a boost for Google, which is getting increased competition from the likes of Yahoo and Bing in the search market.
"More and more consumers search via mobile," he said. "With around 40% of the world's population owning a smartphone, mobile search is becoming increasingly popular with consumers on the go. So [Google] needs to constantly be changing its algorithm to provide the best and most useful searches that consumers need."
Sign up for CIO Asia eNewsletters.