Amazon has launched a Kindle app for BlackBerry smartphones that means owners of the RIM-made handsets in the States can use their phones as ebook readers for Amazon's platform either as a standalone ereader or Whispersyncing it with their Kindle device.

"Since the launch of our popular Kindle for iPhone app last year, customers have been asking us to bring a similar experience to the BlackBerry, and we are thrilled to make it available today", said Ian Freed, VP, Amazon Kindle.

"Kindle for BlackBerry is a great way for customers to continue reading their current book wherever they are - in between meetings, at the grocery store or waiting in the doctor’s office. We think customers are going to love how easy and fun it is to read their Kindle books on their BlackBerry".

Customers using BlackBerry devices on AT&T, Sprint, T-Mobile, Verizon and other US carriers can now access over 420,000 Kindle books by downloading the application for free over at