Google just launched a free new initiative to help small-to-medium sized businesses create mobile websites. Google Mobilize was announced at the company’s Think Mobile conference in London. It provides templates for SMEs to create and launch mobile landing pages.

“Lots of people are buying on a smartphone, but what we’re not seeing is lots of people have mobile-enabled websites making it easy for people to buy on their phone,” said Ian Carrington, Google’s mobile advertising sales director for northern and central Europe, in a press briefing before the conference.

The interesting news for Android fans was announced at the end of the coverage of the mobile offering.

Google’s Android Market app store has now reached 4.5 billion total downloads. “A year ago that was one billion, and that first billion took two years to happen,” said Carrington. “The last billion took 60 days.”

See sample Google Mobilise sites here.