Why don't we have great organizers...?

I have always wondered...why don't we have super organizer software that can have everything bundled ... To-do list, widgets, calendars...you name it they have it. I decided to spend some time on net to find out whether I am sleeping for last 3 years or they are...First I found this very detailed study. I tried out Goovy and Airset. But both lacked SMS alerts, and I love SMS alerts...so surprisingly, I give 9/10 to Rememberthemilk.com. The name is strange, the cow in the homepage looks very familiar and so does the interface. Its sleek(the interface, not the cow) and very intuitive (the cow, not the interface), and above all, this cow sends SMS alerts on ANY mobile (use the @.com) in the world...mooo!
But at the end of the day, I agree with Gina.