Users of the innovative Clear "to-do list" app for iPhone and iPod touch have some good news today; a Mac version of the app is on the way, as is an update to the original iOS app. The app is a collaboration of Realmac Software, Impending and Helftone.

What's new? TUAW had an opportunity to preview Clear for Mac (US$14.99, available November 8), and it looks and acts just like the iPhone app. Similar gestures are used to navigate through the app, but there's a welcome twist to the Mac software -- keyboard shortcuts that make it easy to use the app while keeping your hands on the keyboard.

Realmac has also added sound effects to the app, providing a new levels of feedback as you create new lists, add new items or complete items on your lists. To sync your to-do items between your iPhone and Mac, there's iCloud sync. That last feature limits the app to users of OS X Mountain Lion.

Clear for iPhone 1.2 also gains the iCloud sync capability, and has a new gesture for moving between lists as well as a way to paste items from other apps into a new Clear list.

Check out the official launch video below.