At CTIA I.T. last month, Sprint Nextel and its cable partners announced that their joint venture would be called Pivot; today Comcast CEO Brian Roberts offered a couple of ideas for the "killer apps" of Pivot: interoperability, wireless email and place shifted television. Roberts said, "Over time [the killer app is] going to be interoperability. Can I take my email and get it on another device? I've been watching my on-demand shows, I've stopped watching at home, I want to finish the last five minutes. Place won't matter." Roberts continued: "There'll be a relationship with the company that will manage my data, my television, my phone, my address books, and my voice mails. The seamless nature of that is what mobility brings."

For more on Pivot:
- see this Q&A with The Boston Globe