I thought this was about the new folding display one, like a pair of wings with no body.
The last folding display phone I saw was the eInk roll up model. Apart from the fake one on on 'Earth: Final Conflict'.
I can't even get the flip phone locally. Car Phone Warehouse is full of identical form factor phones and tablets apart from a few obsolete GSM only flip and Candy feature phones supposedly for older people.
There is also supposed to be a new model from someone that wraps on the wrist and opens to be a skinnier regular phone.