I've been using so-called GTD software and services to make my Calendar, ToDo and memo things online and most of them failed. Back in 2000, I started writing up my todo in ~/todo.txt and setup a cronjob to email to my cellphone every day 10 AM. It actually worked really well, but i just wanted more calendarish feature, categorizing by tags and more priorities thing. So far I tested, Basecamp (ov

