The Nokia 3310 has long been considered one of the worlds greatest phones, and much to the delight of old-school mobile users, the device made a comeback at Mobile World Congress in Barcelona this week. Expected to carry a $52 price tag when it hits stores later this year, the new and improved handset now sports a color screen rather than the monochrome display. I got to play around with the nostalgic Nokia phone at the show. The Nokia 3310 is chunky by todays phone standards. Nokia's new 3310 phone builds on the original 1.5-inch monochrome display with a 2.4-inch 240 x 320-pixel screen, which is quite an upgrade.