T-Mobile’s dual-core G2x superphone coming April 15 for $200

T-Mobile’s newest flagship Android superphone, LG’s dual-core G2x, finally has a release date: It’ll be available online on April 15 and in T-Mobile stores on April 20, for $200 with a two-year contract (and after a $50 mail-in rebate).

The G2x, known elsewhere in the world as the LG Optimus 2X, is T-Mobile’s first phone to use a dual-core CPU, as well as one of the first dual-core smartphones available in the US (alongside the Motorola Atrix 4G on AT&T). It heralds a new wave of smartphones that are aiming to compete with computing power on the level of laptops and desktops.

The G2x will also run on T-Mobile’s 4G HSPA+ network, which makes it yet another compelling addition to the carrier’s repertoire of 4G devices, including the recently released Samsung Galaxy 4G, MyTouch 4G, and the G2.

The phone is powered by Nvidia’s dual-core Tegra 2 chip, which is available in the Atrix 4G and is set to power many other Android devices this year. It also packs a 4-inch display, 8 megapixel rear camera and a 1.3 megapixel front-facing camera for video conferencing. The phone will ship with Android 2.2, but LG says it will be upgradeable to the newer 2.3 release. Notably, it can record 1080p high-definition video (most phones today are limited to 720p HD recording).

The G2X will also be the first smartphone to include Nvidia’s Tegra Zone app, which will direct users to flashy Android games that will be able to take advantage of Nvidia’s powerfulTegra 2 chip.

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