Watch that become £535! If I'm wrong I'll stick my hands up but I doubt it somehow...
Hmmm. I don't see how that is remotely competitive against the Onkyo Rubato or Pioneer Private. Both of those have balanced out and twin slots. The cost of the extra 128GB mSD card will not take these two anywhere near £535 - more like £435 for the Onkyo and £385 for the Pioneer.
The Plenue D is still the only DAP that makes any financial sense as it is the only one with sufficient battery capacity to have a long service life ahead of it. All these overpriced wonder toys will be little more use than bricks in two years time.