I will be switching from Sprint to AT&T to get the Note 2 and was wondering about the 4G, My mom has the HTC Vivid and it has the "4G" HSPA+ radio and the LTE radio, Will the Note 2 be the same way? Where I live I get AT&T LTE signal but the HSPA+ would be a good fall back as my girlfriends old Inspire was getting 9 mbps on H+.