I'm a software designer, and I'm mulling over the possibility of building a skeletal calendar program that is intuitive, not overly complicated and encourages consistent use. As a mobile app, I'd like to use these same principles. Where I'd hope to diverge is the ability to set reminders/appointments with the click of a button, by identifying text within an email, a text or a pdf (Dates, names, phone numbers etc.). My reasons for coming onto this forum is enquire as to whether or not my idea has already been realised? I still intend to develop the program regardless, but it would be interesting to take not of the other ideas employed.