A comScore report revealed that 14 million American mobile users scanned a QR code in June–that’s six percent of all mobile device users.  Below, we’ve linked to QR code resources for publishing professionals who want to use these digital bar codes to sell books or link to digital extras.

More than 250 independent bookstores around the country now sell Google eBooks on their websites. However, it takes some tech savvy and effort to educate customers about these new resources.

At BookExpo America this year, we caught up with ABA/IndieBound web developer Matt Supko to collect tips for booksellers struggling to share eBooks with customers.

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This afternoon Apple announced a $99 iPhone with a new cut, copy, and paste function and a 2-megapixel camera–putting the company in charge of a popular, newly-affordable device that obsesses many literary types.

As the price-point lowers, more readers may be seeking out the numerous literary iPhone apps covered here on GalleyCat, including: Stanza, Amazon Kindle for the iPhone, the IndieBound App, and the amazingly popular book promo, Urinal Test.

Most importantly, GalleyCat readers might want to know how to build a literary iPhone app. Earlier this month, GalleyCat interviewed Matt Supko about how he developed the popular ABA/Indiebound book-buying app and landed 50,000 downloads in a few action-packed months.

Everybody talked about iPhone apps at BEA this year, but only one person taught his audience how to build a literary app.

GalleyCat caught up with Matt Supko, the developer behind the popular ABA/Indiebound app which allows readers to find local indie bookstores and browse books on their iPhone. In this exclusive video interview, Supko explains how he built the app and landed 50,000 downloads in a few action-packed months.

Supko also spoke at the excellent “7x20x21” event, a BEA presentation discussion curated by Ryan Chapman and Ami Greko. They chose seven industry professionals and gave each speaker seven minutes, the chance to choose 20 slides, and 21 seconds to talk about each picture.