sorry to sound so sarcastic, but from what i have seen so far... we haven't seen anything but prototypes
insist on plural, b/c sometimes they switch devices during an interview depending on what they want / have to show.
e.g. never actually saw the "theme bla-bla" changing after the back cover was switched.

and haven't seen a single Jolla device handed over to a journalist / bloger for full inspection.

great potential, but whatever the final device may look like still stands in the stars can't help feeling
proof of concept

only conclusion from the demos is that the bezel doesn't seem that big and like underlined in a demo by Martin ("chief designer") considering the importance of sliding the finger from the side, it makes sense to have a good "basis" to start that motion from, rather then

• having to overcome the resistance from the side of the device & swiping to far / strong / whatever
• putting the finger on the display not quite from the edge, which probably defeats the "swype" effect

just my 2 cents / gut feeling