If you own a Kindle you'll be able to download ebooks from the library later this year. See the press releases from Amazon [1] and Overdrive [2].

Links:
[1] http://phx.corporate-ir.net/phoenix.zhtml?c=176060&p=irol-newsArticle&ID=1552678&highlight=
[2] http://campaign.r20.constantcontact.com/render?llr=igzdv8cab&v=001RTSvD7iYYABjMZvHZ6S3Ez7h4DNRquIjomHjcu5q6AyIkF9KUlWtmZV5_Enwa187R6krHt0KIwOvomhqezJd-KK2w-dsz1IvJjX7ngIi4nRZ-D0nwo3tVZ91qS_gUQtb