A new page on T-Mobile USA’s website makes some fairly bold claims about the carrier’s premier Honeycomb tablet, the LG G-Slate. In comparing the sleek device to its steepest competition at AT&T and Verizon Wireless, T-Mobile says the G-Slate is “more than two times faster than the Apple iPad 2 on AT&T and Verizon, and three times faster than the Motorola XOOM on Verizon — and it’s less expensive, too!” At $399.99 with a 2-year data contract or $599.99 off contract, there is no question that the G-Slate is cheaper. Apple’s 3G iPad 2 is $729 with the same 32GB of storage and the Motorola XOOM is $599.99 on contract or $799.99 contract-free. Regarding the speed-related claims, some questions have been raised as to how T-Mobile came to those conclusions. “An independent third party conducted testing to compare T-Mobile’s G-Slate, AT&T’s iPad 2 and Verizon Wireless’ Motorola XOOM,” a T-Mobile spokesperson told BGR in an email. “The testing was conducted in two cities – New York and Seattle – across 30 locations and at least five repetitions with each device per location per market. The total sample size was 300 tests encompassing at least 70 percent of a market.” T-Mobile has once again pitted its 4G HSPA+ service against comparable networks from its two largest competitors, and according to this third-party study, the nation’s No. 4 carrier has again come out on top. BGR reviewed T-Mobile’s G-Slate tablet this past April and found that the hardware was best-in-class, though we were not impressed with Google’s initial build of Android 3.0 Honeycomb.