Just two days after Penguin resumed selling digital library copies to OverDrive, the company has relinquished its requirement that library users who borrow Kindle editions from OverDrive must sideload them via USB. As OverDrive announced in a blog post, Penguin titles will be available for wireless download via OverDrive’s “Get for Kindle” button, which redirects to Amazon’s website. A spokesperson for Penguin declined to comment on what persuaded them to change their policy. Sony‘s latest e-reader, the PRS-T3, will not be sold in the US, effectively signaling the company’s exit from the market here after years of apparent decline and disinterest. […]