42 Providing temporary use of web-based software application that allows users of mobile phones, portable media players, handheld computers and related mobile devices to arrange for the remote exchange of keys to lodgings and homes and for locking and unlocking lodgings and homes; providing temporary use of web-based software application that allows users of mobile phones, portable media players, handheld computers and related mobile devices to rent temporary lodging, access information, listings and announcements about temporary accommodations and vocation rentals; providing temporary use of web-based software application that allows users of mobile phones, portable media players, handheld computers and related mobile devices to provide reviews and feedback about temporary lodging; providing temporary use of web-based software application that allows users of mobile phones, portable media players, handheld computers and related mobile devices to make payments for the purchases of goods and services; providing temporary use of web-based software application that allows users of mobile phones, portable media players, handheld computers and related mobile devices to search for travel, temporary accommodation, travel information and related topics and for making reservations and bookings for temporary accommodations; providing temporary use of web-based software application that allows users of mobile phones, portable media players, handheld computers and related mobile devices to provide travel reviews and recommendations for local attractions; software as a service (SaaS) services featuring software that allows users of mobile phones, portable media players, handheld computers and related mobile devices to arrange for the remote exchange of keys to lodgings, homes and vehicles and for locking and unlocking lodgings homes and vehicles; software as a service (SaaS) services featuring software management tools that allows users of mobile phones, portable media players, handheld computers and related mobile devices to arrange for temporary lodging check-in help; software as a service (SaaS) services featuring software that allows users of mobile phones, portable media players, handheld computers and related mobile devices to rent temporary lodging, access information, listings and announcements about temporary lodging; software as a service (SaaS) services featuring software that allows users of mobile phones, portable media players, handheld computers and related mobile devices to provide reviews and feedback about temporary lodging; software as a service (SaaS) services featuring software that allows users of mobile phones, portable media players, handheld computers and related mobile devices to make payments for the purchases of goods and services; software as a service (SaaS) services featuring software that allows users of mobile phones, portable media players, handheld computers and related mobile devices to search for travel, temporary accommodation, travel information and related topics and for making reservations and bookings for transportation, temporary accommodations; providing a website featuring a search engine for the purpose of booking temporary housing accommodations and lodging