I agree. The difference of 5" to 6" is not that big if you read novels. Even with tech docs and similar, it probably isn't the issue here. I think the main difference comes in with the usage of the device, meaning that tech docs are easier to use with zoom and pan which isn't available on the 300. I wouldn't have mind using the navigation pad on the 505 to move my pdfs to where I read, but unfortunately, it only could move the pdf in fixed increments. Otherwise the 505 is a great device and I think the 300 fits pretty good in its footsteps.
