Competing in a declining cost, low margin industry stinks if you are a supplier (unless, I suppose, you are Dell and blow the competition away with your superior efficiency). It's great if you are a consumer. Voice Over Internet Protocol appears to be just such a business, with AT&T and Vonage each dropping the VoIP service packages by $5 per month. For those keeping score at home, or thinking of ordering it for their home, that means Vonage's package is now $24.99 per month and AT&T's is now $29.99. And this is before cable does a full-fledged cannonball into this rather shallow pool.