As my heading suggests, it looks "semi-official " at least, anyway...... ?
Waterstones ebook site has a helpful section about ereaders for sale, containing the PRS350, but no mention of the 650.
And the section begins with ........
"Introducing our most advanced eReader ever... The wi-fi enabled Cover Story from iRiver is a heavyweight eReader with a featherweight design, weighing in at just 233 grams. Not only can you browse and download eBooks directly from Waterstones.com onto the device but it also boasts a host of advanced features...."
( And at £99 ) :smileymischief:
You can't say it's totally unexpected, really.