From Wired.com:
[Ray] Kurzweil has introduced new e-reader software, called Blio, that approaches e-reading from a completely different angle than the current E Ink-based devices like the Amazon Kindle, Barnes & Noble Nook and Sony Reader.
Blio is not a device.
Rather, it is a “platform†that could run on any device, but would be most obviously at home on a tablet.
The software is free and available currently for PCs, iPod Touch and iPhone.