It's that time of the year again, when Apple rumors bloom with the fall foliage and the press is inundated with hype and wishful thinking. MP3 Newswire has a reasonably sober article addressing 17 of those rumors, even giving odds on the validity of each. From the article: 'It is the peripheral manufacturers that now have a heavy sway on what features the iPod will add to its 6th generation. The peripheral market has done more to cement Apple's proprietary technology as a standard than Apple itself, adding to the iPod's dominance. Mr. Jobs will not upset that balance without good reason and Apple's recent deal with Creative to make iPod peripherals shows he wants to feed it further. But the iPod needs something new to keep it fresh and ahead of the competition.'
The short answer is "no", but it is a qualified "no" because there are odd ways of interpreting the question which could justify the answer "yes". Light is composed of photons so we could ask if the photon has mass. The answer is then definitely "no": The photon is a massless particle. According to theory it has energy and momentum but no mass and this is confirmed by experiment to within strict limits. Even before it was known that light is composed of photons it was known that light carries momentum and will exert a pressure on a surface. This is not evidence that it has mass since momentum can exist without mass. [ For details see the Physics FAQ article What is the mass of the photon? ]. Sometimes people like to say that the photon does have mass because a photon has energy E = hf where h is Planck's constant and f is the frequency of the photon. Energy, they say, is equivalent to mass according to Einstein's famous formula E = m
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