Once again, Tux has beat the Borg to the punch with a new innovation. This time, it's the Pepper Pad, an ultra-mobile computer designed primarily for video playback and Internet access under circumstances where most notebook computers would be too heavy, and most PDAs would have too small a viewing screen. If you have seen the Origami media blitz (who hasn't!!) and you want a truly open ultra-mobile computer NOW and don't want to wait for Origami, you probably will like the Linux-powered Pepper Pad.
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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