According to the latest intel from the Wall Street Journal, Google's initial rollout of their MVNO wireless carrier service might come with a drawback for a great deal of users. Supposedly, the first and ONLY device (at least initially) that will work on Google's carrier service will be the Nexus 6. Here's a quote from the WSJ with the details,

The service, designed to switch among Wi-Fi and cellular networks, will initially be available only on the latest Nexus 6 smartphone designed by Google and made by Motorola Mobility, a former Google unit now owned by China’s Lenovo Group Ltd., two people familiar with the matter said. One of the people said the service won’t work with older Nexus devices, such as LG Electronics Inc. ’s Nexus 5.
Hmmm... this seems like a pretty big limitation to start a carrier service. Of course, if you are already an owner of a Nexus 6, or you are a fan of the larger "phablet-style" smartphones, then this may not be a concern for you. It sounds like the technology will need to evolve to make future smartphones compatible with the service. What do you guys think?