Vapps, Inc., provider of affordable, flat-rate audioconferencing services with in-the-room sound quality, today announced an update of its Skype Extra, a plug-in that launches the full feature set of its High-Definition Conferencing (HD-C) service from within the globally adopted Skypeâ„¢ internet communications application.  Vapps’ added HD-C to Skype’s Extras Gallery in October 2007, uniquely conferencing...