After Andre and Thomas did an outstanding job getting the facebook api working and integrating the Google Map with the friends list, I started yesterday working on THE very famous "Welcome! [user.name]" in our header of the page.
Actually I do now another XHR to retrieve the user data (from the user that is signed in) from a php proxy - Thanks to Thomas! ;) - and use this information to replace the div with the "Welcome! [user.name]" text with this DOM method:
divheader2.replaceChild(new_h1, h1welcometxt);
Furthermore I created a DEMO Account page that is actually using exactly the same "architecture/framework" (and CSS and JavaScript files) like the main page (that uses the customized data according to the sign in information.)
Basically the DEMO Account can be accessed from our MapYourBuddies Welcome Page or just click on this preview image:

So far the latest developments before the Iteration 2 presentation.
-Joern