The free version can't call back a message before it's read, or track when messages have been read.

CNN: Make your e-mail disappear

Read: Fair game - Fast track to driver road rage?

CNN: McLaren rivals settle Bahrain F1 spat

Read: Fair game: Fast track to driver road rage?

CNN: Hamilton claims maiden Mercedes pole in Shanghai

We'll keep track of your last page read, and make it easy.

ENGADGET: blogger-avatar

Once a track is selected, Flipboard users can read other sections while the audio plays in the background, an amazing new capability that lets people listen while they continue flipping through their Flipboard.

ENGADGET: Flipboard brings the noise in NPR-ified app update, Britta will be pleased

Both firms have noted that content should be available "soon, " and while we'll be doing our best to track down more information at CEDIA, feel free to read up on the cryptic release after the break for now.

ENGADGET: SIM2 tag-teams with Entertainment Experience to bring you movies on hard drives

It's no secret that Amazon and other digital book retailers track and store consumer information detailing what books are purchased and read.

WSJ: Your E-Book Is Reading You

These are the money managers you read about in the pages of financial magazines because of their great long term track records.

FORBES: Top Money Managers Embracing ETFs

They can also track their own activity to see how much and how fast they have read.

FORBES: EReader Kobo Raises $50 Million More (Updated)

Their 1994 track "The Lazy Boy" described an armchair from which the Canadian folkies could track European stocks, monitor the latest gossip on Dolly Parton and Billy Ray Cyrus, and read USA Today.

FORBES: Ten O'Clock Tech: The Explorer E-cliner