Microsoft, Intel and Nokia — all leaders in their respective markets — have struggled to capitalize on the rise of a new class of smartphones that can tap into a vast pool of software.

Those companies have come to the world’s largest mobile technology conference here with a message: they are willing to abandon tradition if it means getting another shot at the fast-growing mobile device market and blunting the advance of companies like Apple and Google.

On Monday at the Mobile World Congress, Microsoft presented new smartphone software, the Windows Phone 7 Series, that succeeds its Windows Mobile line. Steven A. Ballmer, Microsoft’s chief executive, introduced the software to a room overflowing with journalists curious to see if it could live up to months of hype.

Read: http://www.nytimes.com/2010/02/16/technology/16phone.html?em