The CellFi Phones Are Here

The development of mobile handsets that tap into WiFi networks has been happening for some time. There are a number of handset makers now rolling them out. US carriers were historically (and mostly still are) opposed to these phones because they don’t use cell minutes or data services while on the WiFi networks, unless you also own those networks and can charge for their use.

But now T-Mobile is testing cell-WiFi (should we call them “CiFi” or “CellFi”?) phones in Seattle according to the NY Times (reg. req’d).

Cell phone carriers shouldn’t fear WiFi it’s the fixed-line telcos (which are also wireless carriers) that should fear them. These dual operation phones will be preferred over landlines if they proliferate and the plans are affordable for consumers.

Then there are the cable companies with their MVNO plans with Sprint in this competitive mix.

Handset battery life is a problem, however, where one uses a cell phone exclusively — at least it would be a problem for me.