Wireless computer input devices; Electronic pens; Computer styli; Stylus-type devices for use in conjunction with a personal digital assistant; Computer stylus-type devices for use in conjunction with providing input to a touch screen computer interface; Cases for handheld electronic devices, namely, cell phones, MP3 players, GPS devices, handheld computer tablets, gaming devices and personal digital assistants; Downloadable software for use in facilitating the marketing and selling of personal use items by an individual, group or entity, namely, e-commerce software to allocate discounts or incentives to owners of personal use items in exchange for further promotion or sale of those items, either in person or via the Internet