I'm the GM. I'm the only one with an electronic play aid at the table (my Galaxy Note 3) to play the 20th century fox spot light video, and sound track. I have a bunch of official star wars music categorized by the situation it's appropriate for so I switch folders, and pick a song in it play and leave it be until the end of the encounter (sometimes I forget to switch songs between encounters). Except for one player (so far), all of them are new to RPG's. That one player said "wow, a sound track is such a little thing but it adds so much to the experience, it really gives it the star wars feel." Other than that, paper pencils, and physical dice (I have 4 sets). I have the star wars dice app which is awesome and would in principle allow me to run a game on the spot (without other materials), but I've been primarily using the d4, d6, d8, d10, d12 (to get a feel for the statistics in my own homebrew system, i.e. to verify that the observed statistics match what I calculated [i got my PhD doing uncertainty quantification so writing throw away programs to calculate the stats is fairly easy for me, but my training as an engineer leads me to test the math/sims with empirical trials <meaning very large numbers of rolls>, and I can do that so much faster with the star wars dice app than physical dice], and explore alternative strategies to using the destiny pool, which in my system is a d4 through d12, that players can swap same size dice into/out of with every roll. The star wars dice app is the only dice app I've seen that lets me emulate the destiny pool, i.e. as a set of not selected dice on the "table"... only the selected dice get re-rolled, and swapping dice out of/into the destiny pool is just a matter of selecting/deselecting dice)
but back to the point at hand, I'm pretty old school, paper pencil and dice all the way (index cards to track initiative and NPC wounds/strain within an encounter)