Here's the UK's Register take on the partnership:
iRex waggles ebook at US
Best Buy bunk-up for Verizon-backed Kindle-botherer
By Bill Ray
"Digital reader manufacturer iRex is about to launch into the USA with a Verizon-connected ebook, putting more pressure on the Kindle in what could be a winning move for Adobe.
The device is part of the iRex's Digital Reader range and branded the DR800SG. The company announced a deal with Barnes & Noble back in August, but the New-York-Times-reported addition of Best Buy and Verizon makes the 8.1-inch-screen-stylus-equipped-$399 device much more likely to compete with Sony to drive the Kindle out of business."
http://www.theregister.co.uk/2009/09/23/irex_verizon/