Microsoft Corp is expected to announce today that it will team up with Nokia in order to feature its Office suite on several of the company’s mobile devices.

The two companies have often been considered rivals in the cellphone industry, with Nokia operating Symbian software instead of Windows Mobile. However, both companies could benefit from the partnership, as both are working hard to cope with increasingly competitive industries.

Nokia, which is the world’s largest cellphone maker, is struggling in the smartphone market against rivals such as the iPhone, BlackBerry and Android.

Many think the partnership is a direct shot at Google, which offers its own Office-similar suite of e-mail, writing, graphing and presenting tools online and mobile devices. Microsoft is set to release its latest version of Office next year, including an online version that will allow users to access Word, Excel and PowerPoint over the Internet.