Apple seeded iOS 5 Beta 6 to developers a couple of days ago. And iH8sn0w was quite fast to update sn0wbreeze to support iOS 5 Beta 6. Sn0wbreeze allows preservation of older baseband so that users can enjoy ultrasn0w or GEVEY unlocks.
My Twitter friend, @AbhirYadava1994 tweeted me a screenshot showing iOS 5 Beta 6 running GEVEY sim.
If you’re a Apple developer and have access to beta IPSWs, use the Alternative method listed in this Pastie to make GEVEY sim work with iOS 5 Beta 6.