Sufis and Saudi Arabia

Angry Arab links to an article about a resurgence of Sufism in Saudi Arabia. He suggests the Saudi government is cultivating Sufism as an alternative to Wahhabism. If this is the case, it would have to be a very long-term plan, and I suspect it's more a case of trying to use tolerance to limit the influence of the Wahhabi ulema, leaving dynastic nationalism as the state's dominant ideology.