The Mobile World Congress kicks off in Barcelona this week with about 60,000 delegates showing everything new in the world of wireless.

The night before the show’s official start Sony Ericsson made a splash with seven new phones that promised users every possibility from back to the future cellphone-enabled handwritten post-it-notes to devices that could hold as many as 8,000 songs.

But the most confusing part of the line-up was the swan – or should one say penguin — song, Sony Ericsson’s first mobile phone with a Microsoft Mobile Windows operating system. The company explained that it needed to broaden its portfolio to new software platforms, but never mentioned why it illustrated the device’s multi-media prowess with the Penguin, a long-time symbol for Linux , Microsoft’s open-source arch-rival.

To read Reuters’ preview of the show, click on http://news.yahoo.com/s/nm/20080208/wr_n m/mobile_fair_preview_dc