Possibly doable on a jailbroken device (I'm thinking sshfs + Calibre's directory-as-device thingy), but on a vanilla device, I doubt it

. (Can't remember if the K3 automagically picks stuff up, so it might need more tweaks to actually *show* the stuff sent that way).
(In the same vein, see also
KSP, which works the other way around).