The title basically says it all.
MGM Resorts is offering free Wi-Fi in their public areas. This is being implemented in stages. Bellagio, Mandalay Bay, MGM Grand and the Mirage already have it available. The rest of the resorts should have it online later this year.

I hope they can finally get Wi-Fi set up for the rooms at the Luxor as part of this process.

Here is a link to the Las Vegas Sun article.