Other companies trying to solve tech's liquid-incompatibility problem repeat the same mantra: Water-resistant features are there to help in case of accidents, not to make a phone safe for scuba diving.

CNN: Waterproof phones and tablets make a splash

One problem is "spectrum incompatibility" among myriad broadband designs--T1, ISDN and nine or so flavors of DSL. Their signals move along copper wire in overlapping frequency and modulation schemes.

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