A flying hotel has been proposed by Wimberley Allison Tong & Goo (but check out their space resort!), as part of a long-term campaign to design "entirely new kinds of destinations" – aka "successful destinations," leaving me, perhaps alone, to wonder what exactly an unsuccessful destination would be (a place at which you can never fully arrive...?).
WATG has even published a PDF – made out to look like a manuscript illustrated by Leonardo da Vinci – explaining their vision of this and other surrealistically imaginative resorts: they're creating the hotel of tomorrow.
(Can anyone say Archigram?)
Perhaps no one will be surprised by this, but I find the project totally fascinating – even if it is designed by an international tourism consultancy firm (an industry brilliantly satirized by Michel Houellebecq's novel Platform [not for everyone]).
I'm still into this thing. In fact, BLDGBLOG could buy one of these hotels and move our offices permanently into the stratosphere. I'd look forward to it.
(Spotted at Interactive Architecture dot Org; see also Deep Space Hilton).