There are three options that I know of.

1) South Point has WIFI available for a fee in the conference area. Not sure what the fee is but you can bet its 9.95-24.95 per day.
2) Don Leuders offered some WIFI through his CLEAR device. It would be limited in range and bandwidth depending on how many people were using it.
3) Last year South Point offered WIFI in the pool area for free. It might still be available, not sure of that