If you’re a developer, check out the contest at Windows Phone Geek. Devs who submit a new or significantly updated app to the Windows Phone Store before January 8th could win a free trip to Mobile World Congress in Barcelona, customized Lumia devices, Nokia gear, and more.

1st Prize:

• Trip for 2 to MWC in Barcelona. Includes: Airfare, Hotel Accommodations, & Event Passes
• App Demo @ WIPJam @ MWC
• Customized Nokia Lumia Device & Nokia Gear
• $300 ad credit on Nokia’s Ad Exchange (NAX)
• 1 Year Free Subscription to Nokia’s Premium Developer Program (NPDP)

2nd Prize

• 1 Free Pass for MWC
• Accommodations @ special “WIP Developer Pad” in Barcelona
• App Demo @ WIPJam @ MWC
• Nokia Lumia Device & Gear
• $200 ad credit on Nokia’s Ad Exchange (NAX)
• 1 Year Free Subscription to Nokia’s Premium Developer Program (NPDP)

3rd Prize

• App Demo @ WIPJam @ MWC
• Nokia Lumia Device & Gear
• $100 ad credit on Nokia’s Ad Exchange (NAX)
• 1 Year Free Subscription to Nokia’s Premium Developer Program (NPDP)

There are also prizes for “Best Lumia Technology Showcase” and “People’s Choice Awards.” You can read more details about this contest and submit an entry on this page.