Sony has announced that the 3.21 firmware that will be released on April 1st 2010 will remove the OtherOS feature on old, large form factor PLAYSTATION(R) 3s. So if you upgrade to the new firmware, you will NOT be able to run Yellow Dog Linux.
IMPORTANT: If continued use of Linux on your PS3 is desired, do not update the firmware on your PS3 after March 31 2010.
For more information to SONY's new firmware, please visit:
http://blog.us.playstation.com/2010/03/28/ps3-firmware-v3-21-update/

PS3 owners who have further questions or concerns about Linux and their PS3 should contact Sony Consumer Services:
[US]http://us.playstation.com/support/ask/
Tel: 800-345-7669 (800-345-SONY)
[EU]http://faq.en.playstation.com

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