Sorry mate i dont use virtual box, its my main os with win7 second so. Cant you get your shared folders though a normal account, dont know if i understand what your saying.
Im not quite sure why theres not so many cpu slots but i think the way it is is fine. But do we really need a 400mhz slot or 700 slot? I dont think so.
About camera stuff erozie says nothing works but we are gonna work on it
-Sony Xperia Z1 - Stock ROM & Kernel
-Sony Xperia Z - PAC JB 4.3.1 & MEOW Kernel
-LG Optimus 3D - ????????? Beta/Jeckyll & Hyde Kernel V3.1.0
-Samsung Nexus 10 - PAC JB 4.3.1./KTManta Kernel