Neat load transitions as you scroll through this dark-schemed launching soon page for ‘AdTerminal’. The Singe Page site also features quite a smart “Sneak Preview” section where you can scroll within the devices, giving you a good feel for the app.
This website has unfortunately been redesigned or gone offline, so I have removed the direct link to it. The screenshot below hopefully preserved enough of the design but if you are really keen to inspect further, try this Archive.org link. FYI: the site was first featured on 19 August 2015.