12/21/2008 05:12 am ET Updated May 25, 2011

Kindle Now A Year Old, But Is It A Success?

Amazon's (AMZN) Kindle e-book reader celebrated its first birthday yesterday. How was its first year?

Amazon doesn't share sales figures, so we don't really know. Today, either supply is low or demand is high -- there's a three to four week wait to buy them for $359.

The only stat Amazon has shared recently: During its Q3 earnings call, CFO Thomas J. Szkutak said, "Kindle titles already account for more than 10% of unit sales for books that are available in both digital and print formats."

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