Microsoft will unveil the new Windows Phone 7 OS and the lineup of smartphones running on the platform at events in New York and London today.
The company has been building up to the launch in the past week, giving hints about its plans for Windows Phone 7-based smartphones and a possible iPad competitor running on Windows 7 by the end of this year.
The company will be launching the smartphones in the US along with AT&T, followed by a European launch within a week. Microsoft's hardware partners include HTC, Asus and LG.
The company has also pledged $400 million for marketing and promoting the new mobile phone platform.
Speaking during a conference at the London School of Economics, Microsoft CEO Steve Ballmer said that the company will also launch a tablet device by the end of this year, in time for the holiday shopping season.
The stage is set and it remains to be seen how well Windows Phone 7 will be able to compete in the market, which is dominated by the likes of Apple and Google.
We will be there to cover the launch in London later today - be sure to check back and get the inside story at ITProPortal.com