iPhone: The appropriately named app REMINDERS! lets you set reminders for yourself as well as the action you need to take so you're able to immediately act on the task when it pops up on your iPhone's screen.
REMINDERS! is a simple to-do app with one great feature that keeps you on task: it helps you act on your to-dos with action-focused reminders. When you set a reminder, you can provide it with an action you need to carry out. While this can't encompass the board range of actions possible, if you can do it on your iPhone then REMINDERS! should have you covered. You can set it to make a phone call, send an email or text message, or check a web page. REMINDERS! can pull contacts from your address book for quick access and it also provides a Safari bookmarklet for fast URL import. It's a nice improvement on the traditional to-do list.
REMINDERS! is available right now, on sale for $2.49 in the iTunes App Store.
Reminders [iTunes App Store]