One cannot simply switch operators or choose the one with the best coverage � to do this efficiently, one would need subscriptions to multiple carriers (i.e. pay access fees to multiple service providers). This also depends on the WWAN access software having the ability to maintain multiple profiles - we will have to wait and see whether laptops will have this capability.

With a subscription to just one carrier, one cannot simply choose another carrier with better coverage, even if there's a roaming agreement between the two carriers because your preferred roaming list will dictate that you use your carrier over the roaming carrier, even if the roaming coverage is better.

See related stuff at http://techuntangled.com

Here's a look at Skype vs. Ooma http://techuntangled.com/why-skype-is-better-than-ooma

Here's a comparison of OOma and Skype
Why Skype is Better than Ooma

Today Tivo announced that it will download and play movies and other content from amazon.com how cool is that? http://TechUntangled.com/tivo-brings-amazoncom-internet-movies-to-a-tv-near-you

Another advantage of separating the set-top box from the security mechanisms to descramble the cable content (i.e. cablecard) is that now the set-top box is free to add new video streams, much like Apple TV includes YouTube. See an interesting article at http://TechUntangled.com/ushering-a-new-era-of-consumer-choice-in-set-top-boxes

This is not the full cost of an iPhone. This is just the bill of materials. there are other costs; see more at http://techuntangled.com/iphone-profit-numbers-wrong