[Q] Infos about build rom / launcher

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Goodmorning to all, i'm new in the android world but very interested in his potentiality, i would ask some questions about the possibility to modify the aspect structure via ROM or via launcher or custom app.
I'm interested and i'm working on embed multimedia system by a year or more in freetime, i would like to replicate on android the new project interface i'm making (showed in picture) if is possibile:
h_ttp://oi49.tinypic.com/iedlx2.jpg (i can't embed directly the picture cause under 10posts )

* The green rectangle is the visible area of app to run, the bottom and top bar must be visible (and if possible to hide top and down bar on event then the app resize to full screen)

So in the end what i would like to ask:
- Is technically possible to change the aspect structure of android like this? no sub menus just this and icons on center that link to the desidered place (Musi, Video, Internet, Settings)

This Rom / Launcher / Structure will be used or on an anodrid develpoment board or over a tablet for test

Thanks for have read