FamViewer!

FamViewer allows you to view GEDCOM genealogy database files on the iPhone, iPad and iPod Touch. GEDCOM files can be transferred to FamViewer with iTunes file sharing or uploaded to FamViewer with a web browser on a desktop computer or downloaded to FamViewer from any web site or web server via WiFi. If you have a GEDCOM file that uses an older GEDCOM version it would be best to import into your desktop genealogy software and re-export using these settings.