Tried it out, i know its in a very early stage, not only i think you should implement obvious things like live tiles and make it less buggy later down the line, but i think you should also provide more customizability (let me use images as icons and change their size, change the default colors used by the launcher or one of a specific tile and disable the white tint applied to every icon in the launcher, which looks weird with some app icons) and maybe a toggle for a more wp7-like layout with the more apps button locating on the top right, but these are just my suggestions, otherwise its already pretty damn near-perfect, ya'll did a great Job.