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This month Samsung releases their W7900 cell phone in Korea. What's so special about it? It has a built-in projector that can beam a 50-inch image on any surface. With digital light processing chips getting smaller and smaller, mini projectors may become as common a feature set in a mobile phone as a digital camera. But is that a good thing?

Just think about your bus or subway commute every day. How many tinny soundtracks do you hear coming from earbuds plugged into those around you – or can you not hear anything because you have your own earbuds stuffed into your ears? How about those preoccupied pedestrians who are too busy texting to look up to see the red light at the cross walk. Adding another feature, one that will allow people to share video whenever they want wherever they want may be a complete disaster.

New Scientist discusses the new tech in their February 28th issue. An interview with Andrew Greaves, a mobile interactions specialist at the University of Lancaster in the UK shares, "People could screen material on a bus, say, that could be indecent – and that might even lead to the need for legislation."

More on the technology after the jump...