The dual-screened nubia Z20 launched back in October in Diamond Black is now available in the gorgeous Twillight Blue color we reviewed. Starting today, you'll be able to pre-order the nubia Z20 in Twilight Blue with shipments scheduled for December 2. And as a bonus if you subscribe to the nubia mailing list, you'll be able to claim a free set of wired Noobz Earphones (normally $14.90). And until December 3 nubia has a $50/€50/£50 discount in effect for the nubia Z20 across its online stores in USA, Canada, the EU, UK, Australia, Hong Kong, Israel, Japan, Singapore, Indonesia,...