The Next Generation Nexus 7 with LTE Data Transfer support manufactured by Asus is now made available in the US Play Store by Google. The 4G tablet is priced at about $349 for a 32GB internal Memory and along you will also get a T-Mobile SIM and 2GB of Data Transfer for about one month.
Also to add a note this deal was added just recently by the company. And also note that the Tablet can run on any 4G network, apart from T-Mobile. Like the 4G networks of Verizon, AT&T, etc.
Also support for HSPA network is on board. So if you want the 4G enabled device along with a T-Mobile SIM and free 2GB Data for one month, hit the Play Store and browse for the device. Or you can also visit the link below to directly land to the LTE Nexus 7 page.
LTE Version of Nexus 7 Play Store