原文如下：
It almost goes without saying, but we will say it anyway
With all of the great stuff lined up for us with the 3.0 OS that Apple described today, many 3G owners may find themselves with itchy update fingers. If you find yourself with access to the 3G IPSW for 3.0 via the iPhone Dev Center program, and you are using yellowsn0w, do not update or restore to that official IPSW. You will lose yellowsn0w and find yourself unable to revert the baseband to get it back.
And for those wondering, yes the 3.0 OS is jailbreakable on all devices. It’s just those using 3G yellowsn0w that have to show some restraint and wait for PwnageTool to create a custom IPSW that avoids the baseband update.
簡單的意思就是～
在iPhone OS 3.0發佈後，iPhone Dev Team也第一時間研究了iPhone OS 3.0 beta並發出了提醒：請暫時管住你那蠢蠢欲動萬惡的雙手，不要升級官方的固件。
原文大意：我們知道面對OS 3.0的種種誘惑，大家總會忍不住想去找一個beta的固件進行升級嘗個鮮。也許你參加了iPhone Developer Program，也許你從別人那裏得到了3.0固件。但是不管怎麼樣，請你們暫時都不要進行升級，特別是那些想保持軟解的人們，升級官方3.0固件將使yellowsn0w失效，並且不可挽回！！
但是好消息是：iPhone OS 3.0是可以被越獄的！！！而且是可以在所有設備上越獄！！！那些正在使用yellowsn0w的用戶們請再多展示出一點你們的抵抗力，管住你們的雙手，耐心等待新版Pwnage Tool的出現，製作出自製固件後在嘗鮮也不遲，否則將會得不償失！
所以～再次提醒
請暫時管住你那蠢蠢欲動萬惡的雙手，不要現在升級3.0的固件
以上分享
