First i would like to say tree_jammer , FANTASTIC skin. I have downloaded around 40-50 skins and this has to be the nicest. I love the square look reminds me of the Windows Phone 7 and Windows 8 Metro UI. I dont want to seem like im pointing at any bugs/missing stuff but here is the list of things i have found so far. I would even like to help, I dont know much about skinning in xbmc, but i do know some about xml.
Volume scroll is hard to see (black on black)
for watched movies and tv shows there is no indicator you have watched it, except to go to options and see if it says mark as "unwatched/watched"
No additonal views, like list as i see with a large list of movies it can become sluggish scrolling through 100+.
When selecting movies, always prompted for a choice "Title, Year etc..."
Not able to add or remove catagories from the main menu (music removed, or addons menu added)
Shutdown menu, could have an option to quit/restart XBMC
When selecting tv show episode information the information window is transpartent on top of the season list and makes it hard to head the text and there all smushed together.
The scroll up and down arrows in the episode and movie information overlaps the movie logo information (720, H.264, DTS etc...)
Able to add a folder of movie/tv show backgrounds and have them rotate on the main screen
If you would like me to help in some way, let me know