The new service will only be available to current Comcast customers during the initial launch period. Plans will start off at $65 per line for the unlimited plan and a pay-as-you-go plan that will cost $12 per gigabyte. Comcast is also offering a $45 option for its unlimited data Xfinity Mobile plan if you are paying for the higher tier X1 TV plan.

Comcast is opting not to build up its own antennas, and will instead use Verizon's network to provide service. But since Comcast has to pay to use Verizon's antennas, that means it's pushing heavily to use Wi-Fi. Customers will automatically be pushed into one of Comcast's 16 million Wi-Fi hotspots around the country if they are near them.

To push its new wireless plan, Comcast isn't including any line access fees or limiting options for customers. Xfinity Mobile will support the iPhone 7, Samsung Galaxy S7 and S8 and the LG X Power at launch.

We'll wait and see if this service will be any good

Comcast offers an intriguing plan with Xfinity Mobile, especially with connectivity to Verizon's network, but there are still a lot of questions that need to be answered. When asked about the past struggles of handing off between cellular connectivity and Wi-Fi connectivity, Comcast executives didn't seem to know it was an ongoing issue, stating it's something they will make a new goal to address. Not exactly what you want to hear from a new service.

No specific date for the the launch of Xfinity Mobile was given. Once Comcast announces more news, we'll be sure to cover it.