I'd like to know this too! I don't have as many friends (only like 5) because there's no grouping or organizing friends, but the few I have never appear online or active.So does anyone have a definitive answer on how to tell if someone else has deleted you from their friends' list? I've got 96 people on my list but so many are no longer active in swapnote or online gaming. I'd like to delete a few but I'd prefer to start with people who've already deleted me.