Broadband Reports discusses NPD Group data about iPhone conversion. "Nearly half of new AT&T iPhone customers switched from Verizon Wireless, another 24 percent switched from T-Mobile, and 19 percent switched from Sprint. iPhone smartphone share jumped from 11% to 17% of the market with the 3G's launch."

T-Mobile can probably keep some folks from switching with their sold out Android G-phone, but what has Sprint got? Actually, they have the Blackbeery Bold, Curve and Palm Centro - the other best selling phones in the summer according to NPD Group.

Other cellular news comes from Gary Kim on his IP Business blog:

More than one fourth of wireless phone customers have replaced their traditional landline connections at home and are now using wireless service exclusively to communicate on a daily basis, according to J.D. Power and Associates. ... The study finds that among the 27 percent of current wireless customers who report replacing their traditional landline phone with wireless service, 61 percent have completely disconnected their home landline service.