An application called Today was released recently by the developers of PocketTweets. It's a $15 application that integrates with iCal to display tasks and events, offering a complete interface for entering new tasks and events without opening iCal. It came at a time when I was furiously trying to make a homebrew task management system come to fruition using iCal and Mail, but ultimately left me in a not-much-better place than I started. I appreciate the simplicity of the app, but it doesn't provide much power beyond just using iCal to begin with.
Anxiety, which is free (and features a HUD interface which somehow always earns points in my book), provides similar integration -- at least for tasks -- as do several other great little applications. But none of them allow for the task sorting, flagging, etc. that would make them truly useful to me.
