As it turns out, there is pretty decent free Wi-Fi around the convention center that is open to all. But then there is that locked, much better Wi-Fi presumably available to whomever SXSW deems a VIP. At the end of the day, everybody is welcome to sit, stand, listen, eat and drink, talk or dance at least somewhere within the city limits. A small subset were able to do some or all of these things with a much more curated, if you will, pool of attendees.
You guys, there is this conference in Austin and etc.