A computer-implemented method comprising: establishing, in a first direction, a directional wireless link between a first computing device and a second computing device, the first direction being a direction of a signal path of the directional wireless link; exchanging, over the directional wireless link in the first direction, first data between the first computing device and the second computing device; determining, via a sensor of the first computing device, a change to a position or an orientation of the first computing device; redirecting the directional wireless link to a second direction based at least in part or the change, the second direction being the direction of the signal path of the directional wireless link; and exchanging, over the directional wireless link in the second direction, second data between the first computing device and the second computing device, wherein the first computing device is a motile head-mounted display device (604, 704, 800) worn by a user, the motile head-mounted display device comprising a data source that generates the first data; the second computing device is an auxiliary processing device (606, 608, 610, 706, 708, 710, 712); and the second data is a result of the auxiliary processing device processing the first data; wherein exchanging the first data between the first computing device and the second computing device comprises transmitting, over the directional wireless link in the first direction, the first data from the first computing device to the second computing device; and exchanging the second data between the first computing device and the second computing device comprises receiving, over the directional wireless link from the second direction, the second data at the first computing device from the second computing device; characterized in that: the first computing device comprises at least one antenna array capable of spatial selectivity; wherein establishing the directional wireless link comprises focusing a gain of the antenna array in the first direction; and redirecting the directional wireless link comprises focusing the gain of the antenna array in the second direction. establishing, in a first direction, a directional wireless link between a first computing device and a second computing device, the first direction being a direction of a signal path of the directional wireless link; exchanging, over the directional wireless link in the first direction, first data between the first computing device and the second computing device; determining, via a sensor of the first computing device, a change to a position or an orientation of the first computing device; redirecting the directional wireless link to a second direction based at least in part or the change, the second direction being the direction of the signal path of the directional wireless link; and exchanging, over the directional wireless link in the second direction, second data between the first computing device and the second computing device, wherein the first computing device is a motile head-mounted display device (604, 704, 800) worn by a user, the motile head-mounted display device comprising a data source that generates the first data; the second computing device is an auxiliary processing device (606, 608, 610, 706, 708, 710, 712); and the second data is a result of the auxiliary processing device processing the first data; wherein exchanging the first data between the first computing device and the second computing device comprises transmitting, over the directional wireless link in the first direction, the first data from the first computing device to the second computing device; and exchanging the second data between the first computing device and the second computing device comprises receiving, over the directional wireless link from the second direction, the second data at the first computing device from the second computing device; characterized in that: the first computing device comprises at least one antenna array capable of spatial selectivity; wherein establishing the directional wireless link comprises focusing a gain of the antenna array in the first direction; and redirecting the directional wireless link comprises focusing the gain of the antenna array in the second direction. the first computing device comprises at least one antenna array capable of spatial selectivity; wherein establishing the directional wireless link comprises focusing a gain of the antenna array in the first direction; and redirecting the directional wireless link comprises focusing the gain of the antenna array in the second direction.