Good news it’s the ePub format that Chapters has chosen.
I was hoping for the Nook but so far theses are the supported eReader devices:
ePub files purchased on shortcovers.com can also be read on the following eReading devices:
* PRS-300 Reader Pocket Edition
* PRS-505 Reader Digital Book
* PRS-600 Reader Touch Edition
* PRS-700BC Reader Digital Book
* Asktak (EZ Reader, EZ Reader Pocket Pro, Mentor)
* BeBook (One, Mini)
* Bookeen (Cybook Opus, Gen 3)
* COOL-ER Classic
* Elonex eBook 600
* HanLin eBook (V3, V5)
* IREX Digital Reader 1000S
* Neolux NUUT2