T-Mobile USA has officially priced the T-Mobile G-Slate by LG, which will drop at $529.99 after a $100 mail-in rebate. A two-year voice and data plan will be mandatory to get that subsidized price on the 8.9-inch slate, however.

That’s unlike the other Android 3.0 Honeycomb tablet we’ve seen, the Motorola XOOM, which only requires a data plan. Still, the G-Slate can record 3D HD video using its dual camera array, and will come with Need for Speed SHIFT HD and other apps preloaded.

No official word on the exact release date, but last we heard T-Mobile was readying the G-Slate for a debut on April 20. We’ll be checking it – and the G2x – out at CTIA this week.

Press Release:

T-Mobile G-Slate with Google by LG:

Powered by Android 3.0 (Honeycomb), the G-Slate delivers a premium mobile entertainment experience with a brilliant 8.9-inch, 3D-capable, multitouch HD display and the ability to record 3D and full HD video. With the new G-Slate, customers can access their favorite TV shows, magazines, games and more with pre-installed applications such as T-Mobile TV, Need for Speed SHIFT HD and Zinio eReader. The T-Mobile G-Slate will cost $529.99 after $100 mail-in-rebate card with a qualifying mobile broadband plan on two-year agreement, voice line and enrollment in EasyPay.