Hi there, one Eken M001 is hopefully on its way to me

I was wondering, as far as this device supports MP4 video playback - which codec does it really support? h263? I'm thinking that if I could encode videos at quarter the screen resolution -> 400x240, I might be able to put 512 kbps (or maybe even more) into the video, at 24 frames per second, with 32kbps mono mp3 audio, and it might even look decent on this tablet. Has anyone experimented with m001's decoding abilities?