Verizon as part of its 4G launch claimed itself directly responsible for the popularity of Android and also clarified its device plans. Google's mobile OS "took off" when it launched on Verizon with the Motorola Droid, the carrier said, and 4G was likely to do the same this Sunday when the LTE network when live. Both Android and 4G were on T-Mobile and Sprint earlier, it implied, but didn't catch on.