It has also launched Google Drive, its documents and file sharing tool, as an app on iTunes.
Chrome’s expansion from desktop to mobile comes shortly after it was named the world’s most popular web browser, overtaking Microsoft’s Internet Explorer.
According to figures from Statcounter, Chrome now as a global market share of 33%, compared to Internet Explorer’s 32% and Firefox’s 25%.
Chrome launched three years ago and Google has put significant marketing muscle behind it, rolling out the widely-acclaimed 'Wilderness Downtown' interactive video in August 2010.
Other announcements from Google's I/O conference this week include the launch of its first tablet, called the Nexus 7, and the unveiling of its augmented reality digital glasses.
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