  We address the concept of guiding and transporting matter-wave solitons along
the channels of optical lattices made by interference patterns of beams
containing topological wavefront dislocations. The local lattice distortions
that occur around the dislocations cause solitons to move along reconfigurable
paths, a phenomenon that may be used for controlled all-optical manipulation of
Bose-Einstein condensates. Multiple dislocations form traps that can capture
and hold moving solitons.
