The NEW WordPress Mobile Pack allows you to 'package' your existing content into a cross-platform mobile web application.
Opes Favicon allows you to add and manage favicons & icons on your WordPress website.
Integrate your site in to your users OS, Windows Live Tiles, icons for Apple and Android, iOS Web App!
Create custom, live-updating tiles (with images!) for Windows 8.1/IE11 users to pin to their Start Screens.