I really deeply wish they had attempted a profile that was 64mm wide folded and double unfolded. Height is less important.
The whole advantage of having any screen at all when folded is something quick to access and *one handable*. Just looking at the Duo, it appears too wide for that by a large amount.
If I’m forced to two hand the thing I’ll just get a phablet: no folding mechanism, no unfolding step before using properly, no gigantic price hike (guessing).