While corporate favorite BlackBerry continues to reach out to the general consumer market, with its MySpace app receiving 400,000 downloads since its launch less than two weeks ago, general consumer fave Nokia continues to reach out to the corporate enterprise, with its latest facility: support for IBM Lotus Notes.

First the BlackBerry: The Washington Post was stunned to find that more than 15 million MySpace messages had been sent over the BlackBerry mobile app, and more than 2 million moods and statuses had been updated.

Next Nokia: As of December, most Nokia S60 series handsets, including the S60 3rd Edition and the N96 Bruce Lee Special Edition, will be able to access their corporate email accounts through a new mobile app called Lotus Notes Traveler, catering to a market base IBM reports at 140 million plus licensed users.

Who will have more success cross-marketing their products in "the other guy's court"? Only time will tell.