Just as expected, the T-Mobile G2x (aka the LG Optimus 2X) has gone up for sale on the carrier’s online store, a little under a weak ahead of in-store availability. Priced at $199.99 with a new, two-year agreement (and after a $50 mail-in rebate) the G2x has HSPA+ connectivity, a dual-core 1GHz Tegra 2 processor and an 8-megapixel camera.

There’s also the usual bevy of WiFi, Bluetooth and GPS, along with a front-facing 1.3-megapixel camera for video calling. OS is Android while the display is a 4.3-inch WVGA panel; the same size as the HTC Sensation but lower resolution.

In-store sales of the T-Mobile G2x will kick off on Wednesday, April 20.