Orange Home (IE)
Contacts is on the soft key (providing you don't have any messages or anything).
Inbox and Calder are both on the screen (I've the default screen) so are pointless to be there.
I think Neil said on the newsgroup that these icons are supposed to display the last applications launched, but I don't think I've ever seen them change.
Would be nice if I could choose what went there (IM, WMP... etc). I've got these set up as speed dials, but speed dials aren't too speedy actually...