Om Malik at Gigaom has made an interesting analysis of the effects of widespread broadband penetration into the US market. As the demand for broadband tapers off because the pool of persons that don’t yet have it slowly dries up, there’s really only one thing the providers have left to sell: faster speeds.It should come as no surprise that the carriers have let go of incremental speed upgrades and have gone ahead and doubled or tripled the speeds of their offerings. Why? Because bumping speed to 2 Mbps from