I just picked up on HeadFi that Meizu's two most recent phones (MX and MX2) both support SPDIF output provided you can obtain the adapter cable. This to me looks like a very promising option for portable high quality audio when coupled with a DAC+AMP. The slight drawback is neither phone seems to support a TF card so you'll be limited to the inbuilt storage - up to 64G on the MX2.
http://en.meizu.com/products/mx-specifications.html
http://en.meizu.com/products/mx-specifications.html