hook_page_alter to change title on user profile page?
This finally worked for me; it's essentially what was posted at http://drupal.org/node/1262070#comment-5038516, but with some function renaming and generalizing:

function YOUR_MODULE_menu_alter(&amp;$items) {
    // Change the title of user profile pages to the user's name.  Gak.
    $items['user/%user']['title callback'] = 'YOUR_MODULE_user_page_title';
}


and then

function YOUR_MODULE_user_page_title() {
    if (arg(0) == 'user') {
        // Load uid from url
        $user = user_load(arg(1));
        // Get the full user name somehow; here, I'm calling a function of my own.
        $output = get_user_full_name($user);
    }
    // Fallback to username if no fields are present
    if (empty($output)) {
        $output = $user-&gt;name;
    }
    return $output;
}


But, come on.  It's nice that the hooks are there, but doing something like setting the title of a page REALLY shouldn't be this hard/obscure...