According to supposed internal T-Mobile documents, details surrounding the release of three upcoming devices may have just been revealed. The information, while unconfirmed, lines up well with previous rumors in several instances. First up, the Dell Streak 7 will supposedly launch on February 2nd for $299.99 with a two-year contract. Unveiled at the Consumer Electronics Show earlier this month, the Dell Streak 7 features Android 2.2, a 7-inch WVGA display and a dual-core Tegra 2 processor. Next, the document states that the Samsung Galaxy 4G smartphone will launch on February 23rd, featuring Android 2.2, a Super-AMOLED display and “4G” HSPA+ connectivity. Finally, the 4G-enabled, Honeycomb-packing LG G-Slate is said to be launching on March 23rd. Hit the break for an additional slide.