I can't get full screen to work either, through zplayer and kino2 despite the -fs flag
Sharp 1.11, 18a kernel, atty bvdd 0.3.1-1 kernel-modules v18, mplayer-bvdd-iwmmxt 1.1.4-1, zplayer 0.0.5
Additionally, zplayer does not enable the "Enable iWMMXt" checkbox despite the 18a kernel. There's definitely a speed improvement though.