[Shivansps]

Well empatzero build is a proof of concept only,(i think this is the lib that gimli rejected) i give it a go and well... it performs much better killing x11, but UI fps at 720P is around 40fps and 18-20fps at 1080P, considering the low idle cpu usage that has be running on hardware, im not sure if that what we have to expect from an Mali-400 single core.
Still, the UI feels good anyway.

On playback... well, i was unable to playback anything on Cedar, the cedar lib for linux does not support most of the formats and codecs, for example, it supports .avi h.264, but not .mkv h.264, i think .avi h.264 is the only thing it supports right now.
BUT, i was unable to playback .avi h.264 too, everytime that i try to open a file that Cedar accepts XBMC crash with a "Decoder(number):5", thats what says in the log too, everytime that xbmc opens "A10", it crash, it can only playback the ones that "A10" fails, so it switch back to software decoder.
Im not sure if it was supposed to work or i did something wrong...

And about software decoder, it performs very well, it can playback all my 720P episodes, to give you an idea, the "Big Buck Bunny" 720P trailer file playbacks with about 80% cpu usage, i now those are low bitrate, but still very good to be running on software.

What is making it unusable 720 right now is the screen tearing i have no idea how to fix, when i start to playback something the screen "vibrates" up and down...