I have an iPad and with the right tool, you can watch anything in 720p as long as it is 720p or higher of course. Download Hand brake, which is free, and you can encode your mkvs in m4v(which is mp4 really) with the h264 codec and you can even add chapter markers, subtitles and dual audio, of course with all of this your file might be just as big as the original, but you won't be disappointed with the quality…