How to get Cydia Icon back after jailbreak firmware 6.0 Iphone 3GS

Last week. I've perform all instructions correctly to upgrade my 3GS iphone from Firmware 4.2.1 to Firmware 6.0. Unfortunately I've got information on the last window of RedSnow to advise that Cydia will not be available for the Jailbreak for the time beings ... Can you please Iclarified expert let me know when the next wave of jailbreak will be available so I'll wait Or shall I go ahead & Downgrade again to version 5.1.1 Thanks & Best regards,,,