Pixion, creators of PictureTalk, a cross-platform Web conferencing solution, today announced the release of PictureTalk 4.6 and are offering free access to the beta site to attendees at Macworld Expo in San Francisco this week. Version 4.6 now allows for porting of recorded conferences into QuickTime and Windows Media formats. In addition, this release offers new and updated annotation tools including text, shapes, plus pre-defined and/or custom stamp tools; support for public meetings, as well as private meetings; and the ability to push (pre-uploaded) videos across a Web conference to all viewers.