The extra attributes added by gContactSync (ThirdEmail, FourthEmail, (Google)TalkScreenName, YahooScreenName, MSNScreenName, ICQScreenName, JabberScreenName, OtherAddress, OtherNumber, HomeFaxNumber, and Groups) are now easily viewed and should be indistinguishable from regular attributes in the GUI, but the extra properties will not be copied/moved with the card unless you have the patch for 413260 applied. The extra attributes will work for every card, not just cards in the one address book.
- There is an extra tab added the to Edit Card dialog that lets you set all of the attributes (except setting the Group will have no effect).
- You can view and sort the cards by any of the attributes in the tree view
- All of the properties are visible when the card is selected in the card view. The e-mail addresses are linked to mailto: URIs and the address has a MapIt link that uses Google Maps to view the address.
I had to change the name of the Google Talk ™ screenname from GoogleTalkScreenName to TalkScreenName because the card viewer showed the GeneratedName instead of the screenname.