Hilton Hotels is considering three app ideas for their customers: 1) A concierge app that provides guests information about the local area and entertainment options when booking a hotel, allowing them to purchase tickets through partnerships. 2) A community app that allows guests to interact and find other guests interested in social activities during their stay. 3) Partnering with Dopplr to access profiles of loyal Hilton Honors members, allowing them to share tips, reviews, photos and recommendations of Hilton hotels on a social platform.