Slight different? By what?
And same question about the 301+?
301+ IS Netronix EB600 (and 301 is Netronix EB100)
360 IS Netronix EB500 (netronix have internaly only two version of the 5 inch device, one for Bookeen, and the other one, used at least by pocketbook. I had access a few weeks ago to the netronix firmware sources.)