Dave Johnson serves as director of design for PhoneGap at Adobe Systems. Prior to that, he was co-founder and chief technology officer at Nitobi Software. Although his primary role is technical consulting at Nitobi, Dave can handle anything from support to quality assurance. Dave has spoken at various conferences including CommunityOne 2007/8, The Ajax Experience 2007, XTech 2007, and JavaOne 2007. He is the co-author of the book Enterprise Ajax and has written for numerous magazines and publications, including JavaWorld.com, Adobe Developer Center, and XML.com.