T-Mobile (soon to be AT&T) and LG have a great relationship. Together, the companies are working together on the G-Slate tablet and a new premium Android phone, the T-Mobile G2x. I got my hands on the G2x yesterday afternoon and it has some impressive features. Most notably, the ability to instantly stream HDMI content (via its Mini HDMI port). This feature is called HDMI Mirroring. When connected to a big screen, I was able to actually use the phone as a controller and play Android games on a 40-inch TV screen. This feature isn’t brand new, but out of the box, it’s an interesting addition.