One of the cool things about Ni-H LENR is that it has the potential to make Bussard Ramjets more feasible (assuming it is H-H fusion as now seems most likely).
A Bussard Ramjet is a Rocket that scoops up hydrogen from the interstellar medium using a vast magnetic and/or electrostatic field, then fuses it and fires it out the back. The concept has always had a major flaw in that hydrogen is nearly fusion-proof in conventional hot fusion except as part of Carbon-Nitrogen fuel cycle. Even if that whole fusion reaction happened in a LENR cell and the power conversion requires a heat engine the energy could still be used to drive a particle accelerator that accelerated the ash (Helium?) out the back. You would essentially never run out of fuel (so long as your LENR lattice does't get used up), so possibly much faster trips to the stars without the requirement for ridiculously large exotic (deuterium, lithium or He3) fuel storage tanks. Speed might still be limited to a few % of c, but even that looks pretty good from where we are standing now, as they can also be used for decelleration and Bussard LENR ramjet ships might be a lot cheaper and more compact than what was hither-to thought possible.
