I haven't done so myself, but I do have two OLED Vita and two PS Vita TVs that I will eventually add custom firmware, but now you can pretty much turn your Vita into an unlocked entertainment device. Great for PS Vita TV owners who can use a PS3 or PS4 controller and have this all hooked up to your TV.

It also makes the Vita able to use SD cards with this as well. Anyways, here's a Youtube video.