Sprint’s 3G walkie-talkie service racks up 1M users

Sprint has transferred the familiar chirp of its Nextel push-to-talk service over to its core CDMA networks. While it hasn’t succeeded in recapturing every single of the Nextel customers fleeing after its shutdown of the iDEN network, it has managed to resign 1 million of them.

How mobile data is making us question everything

The switch from voice to data isn’t just affecting carriers. The new mobile data reality is driving device makers to change the way handsets are designed, Internet companies to deal with the smaller screen, and infrastructure makers to re-architect the fundamental topologies of their networks.