Spherical panorama viewer for iOS and Android (clone of this app iVisit3D: [url removed, login to view]), controlled either by touch or by sensor fusion. User must have a choice which panorama to download (only pre-determined ones on our servers). Choice of a current panorama either by built-in arrows or by choosing one on a non-interactive map. In addition to that, text is to be displayed relevant to the part of panorama you are currently watching. Optionally user can play an integrated mp3 instead of text. That's it, in a nutshell. Final designs and workflow diagrams are in creation right now (I will provide all graphic assets, icons, user interface workflows etc.) I'm available for any additional details and explanations.
Thanks for your estimates:)