The Barcelona GSM Mobile World Congress begins today in Barcelonam, which means 50,000 professionals have descended on Barcelona.  Speaking this year are big names from Yahoo, Sony Ericsson, Nokia, Samsung and more.  Speakers range from Steve Ballmer, of Microsoft fame, to Kevin Spacey.  Key subjects this year will be the Smart Phones and Touch Phones, as most manufacturers race to catch up with the iPhone.

More information on the GSM congress here.