I have try a tool which can activate, unlock 1.0.2 phone and install the Chinese dictionary (weDict):

http://www.iphone.org.hk/attach/357-iTweak_v2.30.zip

but I found this tool overwrite the original "com.apple.update.plist" and "update" files without backup the original:

/System/Library/LaunchDaemons/com.apple.update.plist

/usr/sbin/update



Anyone can send me the originals from their 1.0.2 phone?

Thanks!