Major Nelson, the head of Xbox Live has posted on his blog: “When Preview Program members start receiving the Xbox 360 system update next week, one of the changes is that unauthorized Memory Units will no longer work with the Xbox 360. If you’ve moved your profile or saved games onto one to “back it up,” you’d better move it back onto an authorized Xbox 360 storage device prior to taking the update. If you continue to use an unauthorized Memory Unit after the update, you will not be able to access your stored profile or saved games.” So much for Datels Memory Card which could use SDHC cards as memory. I wonder if this means anyone who has hacked a laptop hard drive to work in the 360 will also no longer be able to use it? I guess we will findout next week.