A variety of data structures, components, runtime viewers and methods are described for defining, delivering and rendering wrapped packages of cards in a manner that is particularly well suited, but not limited to, display on mobile devices. Each card may selectively include media content, and a palette of application functionality and/or supporting e-commerce related services. The cards of the wrap packages are ideally threaded together into one or more linear sequences, and authored to convey a book-like narrative that unfolds as the cards are sequentially browsed. In addition, the wrap packages are portable objects that are readily distributed, similar to other electronic messages, through e-mail, messaging, social-media, or via a variety of other electronic communication platforms. As a result, wrap packages are consumable, sharable and savable objects.