• A new way to organize your life - Wunderkit
  free now ! missing a few things though
  in GTD with collaboration gtd iphoneapps macapps webapps by 2 users
• OmniPlan
  The Omni Group
  in Public bookmarks with macapps projectmanagement
• Merlin
  ProjectWizards präsentiert Merlin - Projektmanagement für Mac OS X
  in Public bookmarks with macapps projectmanagement
• Producteev - Task Management Tool
  20$/m
  in GTD with collaboration gtd iphoneapps macapps webapps
• SimpleMind Touch
  Mind Mapping for iPhone / iPod Touch and iPad | simplemind
  in Public bookmarks with macapps mindmap
• The Hit List
  this was one of my favorite GTD/todo Mac apps but back then there was no iPhone app, and when it finally came out it was too expensive for me.
  in GTD with gtd iphoneapps macapps
• Wunderlist
  Task Management At Its Best
  in GTD with gtd iphoneapps macapps webapps
• Flow: Task Management and Online Collaboration for Teams
  10$ /m
  in GTD with gtd iphoneapps macapps webapps by 2 users
• GanttProject Home
  in Public bookmarks with free macapps projectmanagement winapps by 3 users
• MindNode
  mac: 20$, iOS: 10$
  in Public bookmarks with iphoneapps macapps mindmap untested

macapps from all users