Google Voice - Google Voice gives you one number for all your phones, voicemail organized in an email format, free...
My Personal Kanban - This is a one page HTML/JavaScript application for people who would like to use simple and basic...
TextNow - TextNow is a mobile virtual network operator (MVNO) that provides a free phone service to users by using other cellular networks coverage.
TaskBoard - A Kanban-inspired app for keeping track of things that need to get done.
Burner - Disposable phone numbers -- now with MMS photo support
buckets.co - Feature rich kanban board collaboration platform.