Promoting my new app... (i also posted this in the themes section)
Dual Wallpaper allows the user to select two different wallpapers to be set when the phone is either in Landscape or Portrait mode.
When the orientation changes, the application will automatically change the wallpaper.
My Home Screens both Portrait and Landscape
and the two wallpapers i used ( notice how the landscape one is half black, cause you can't see it )
This app solves all my problems with how android handles the wallpaper.
It is up on the market now.