Seriously, how hard is it to bring in some portable cell towers to make sure that people can connect to the internet for 3 days. If you can do it in Austin for SXSW, you can do it at Coachella.
Texts were delayed, Internet service was non-existent for iPhone users.
Without the Internet, there was no way to get stage change information. Would have loved to see Sly's shambolic performance as the Gorrillaz were boring, but had no way to know he was playing.