Disable iPhone backup while iTunes sync…
quick tip. since everytime when syncing iphone 3g with itunes, it took lots of time backing up the application / data stored in iphone. found a way to disable this to speed up the sync process.
for windows vista, locate the [iTunesPerfs.xml] under [C:\Users\<user-name>\AppData\Roaming\Apple Computer\iTunes] folder, open this xml file with xml editor like Notepad++, goto to the XML tag <key>User Preferences<key> and insert the following XML into this section immediately after the first <dict> tag:
save the file and done.
remember to remove this setting sometimes to let iTunes backup the iphone settings in case your phone get into some trouble and need a full restore…