  In the first part of this letter we discuss electrodynamics of an excitonic
condensate in a bilayer. We show that under certain conditions the system has a
dominant energy scale and is described by the effective electrodynamics with
"planar magnetic charges". In the second part of the paper we point out that a
vortex liquid state in bilayer superconductors also possesses dipolar
superfluid modes and establish equivalence mapping between this state and a
dipolar excitonic condensate. We point out that a vortex liquid state in an
N-layer superconductor possesses multiple topologically coupled dipolar
superfluid modes and therefore represents a generalization of the dipolar
superfluidity concept.
