According to this article on Engadget, Sprint/Nextel are in talks with the major cable companies to integrate cell phone service into their offerings that cover cable tv, VoIP and internet service. Having a good voip is a must have especially in most businesses, best voip means having a best communication with your employees and clients, you will have the clarity you want for every voice calls you make with them.
I'm currently a Comcast customer and have been quite happy with their services. I honestly don't believe DSL can actually hold a candle to cable modem service for internet access. Through Comcast, I currently bundle my internet access, cable TV and home phone service.
Since I'm currently a Sprint customer as well, the opportunity to bundle another product with that service would be a great little feature. The idea is that I could use my cell phone at home on my wireless network for free calls through the digital voice (VoIP) service provided by Comcast, but when I'm out of range of my own wi-fi network, or the free one at Panera Bread, then it would switch to the cellular towers.
Sounds good to me, let 'er rip!