The T-Mobile G2X is essentially the LG Optimus 2X, but made for T-Mobile USA. It has that same Nvidia dual-core processor, but it also has support for T-Mobile's HSPA+ network.
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Tegra 2
As we said, the T-Mobile G2X comes with the 1GHz Nvidia Tegra 2 dual-core processor. This gives it extra oomph as a gaming machine, and Nvidia has wisely added its own Android app that lets you purchase and download apps that are custom-designed to take full advantage of the phone's processing power.
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Stereo sound
In addition to the two stereo speakers you see here, the G2X has DTS Ultra Mobile, which combines two DTS technologies--Envelo and Boost--for enhanced surround-sound performance.
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8-megapixel resolution
The 8-megapixel camera lens on the G2X is made with real glass, and it has an accompanying LED flash. It can record 1080p video too.
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Stock Android
We're happy to note that the G2X comes with a stock Android interface. It ships with Android 2.2 Froyo and is upgradable to Android 2.3 Gingerbread.
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HDMI
The G2X has a Micro-HDMI port at the top so you can hook it up to a TV and see what's on your phone's display up on the big screen. The G2X also supports DLNA, if you prefer to stream your content instead.
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Video
The G2X's 4-inch WVGA screen is well-suited to HD video.