TFA says the device does have WiFi
... the only question is if there's a way to program it in some way. E-Ink earlier complained that with better drivers, a lot more could be done with the display.
This video shows off various E-Ink displays, some running color videos
... it is possible to some extent with the right software, so I figure with the right drivers, it could be used as a regular computer display, which in turn would enable the development of arbitrary applications.