The two MVNOs operate on all four major networks in the US-- T-Mobile, Verizon, AT&T, and Sprint. By adding these MVNOs, Kitty Wireless is able to provide its customers more options other than the Verizon-based services provided by Puppy Wireless and Page Plus Cellular.
Since the two new MVNOs are using a similar platform as Puppy, customers will have the option to "merge" lines from different carriers from one dashboard. This will give customers ability to manage a line on Puppy on one dashboard while being able to manage a line on the three other carriers.
By providing service on all four networks, Kitty is able to provide over 40 prepaid plan options that customers are able to choose from. The two new MVNOs will have slightly different plans which promise to be more competitive.
As of this writing, Kitty Wireless' website features placeholders for the two MVNOs which are referred to as New MVNO #1 and New MVNO #2. These two MVNOs are said to be added onto Kitty Wireless' website sometime this week.
Source: Kitty Forums