You can read my earlier review of FamViewer at http://blog.eogn.com/eastmans_online_genealogy/2009/07/famviewer-for-the-iphone.html
Version 2.3 is designed to run on the new iPad and iPhone OS 4.0, as well as iPhone OS 3.1.3. New features added to the latest release include:
- Users can transfer files to FamViewer with File Sharing through iTunes.
- New Note files can be exported and accessed with File Sharing through iTunes.
- Will open GEDCOM files sent by email to Mail.app.
- File import step can be cancelled.