ds3vita beta 1
First release, LEDs are not working yet (so they will continue to blink even when the DS3 is connected lol).
Also, you have to pair your DS3 to the Vita's MAC plus 1 manually (you can use this tool: http://dancingpixelstudios.com/sixaxis-controller/sixaxispairtool/ or sixpair: https://help.ubuntu.com/community/Sixaxis?action=AttachFile&do=get&target=sixpair.c)
You can find the Vita's MAC address in: Settings -> System -> System information