I did a search on the "Eric Prydz" version and found this
Another Brick
From the site it says it has been officially approved
This is the first time a Pink Floyd record has ever officially been cleared. Lacing David Gilmour?s caliginous vocals with an immense electro bassline, Prydz builds on the epic nature of the original, moulding it into a bouncy slice of crossover brilliance. Using both the original vocal and other musical elements of the 1979 hit, the Swedish house don gives a respectful nod to the anti-establishment aesthetics of the record, while perfectly bringing it up to date, giving it a new lease of life for another assault on the charts.
My opinion is that is a better cover than the Scissor Sisters version of "Comfy Numb", but dont expect it to be a completely faithful version of the original.