Time managment, to do, organiser App

Hi

I'm looking for an organiser/to do list program that can run/sync between my Mac and iPhone 4.

Any recommendations and ideas?

On the iPhone app store there are a lot to choose from and not always clear what, if any, sync between an app on the mac and the phone.

Any help, advice and recommendations welcome!

Thanks

One way would be to use Google Calendar.
Free and can be accessed from any phone or computer because it is web-based. Not an actual "app". You sign in through your web browser.
I don't know if that sounds like anything you're looking for, but it is useful to have a "web-based" calendar that you can make changes to anytime anywhere. Only down-side is you need internet access of some kind to view it.

I like Things.

Wunderlist hasn't been mentioned yet.

Wunderlist | Task Management At Its Best

Thank you everyone!

Trying Wunderlist to start with. Looks just what I was after!

Liked Things - but it's not free ;-) lol

Thanks

You get what you pay for