Bookathon--
After installing the firmware, the 505 will allow the text to reflow. This sometimes messes up where the graphics display. In the smallest size, the page will look be presented as it is in the original PDF. Because of the size of the 505's screen this can cause the text to be very small. When you reflow the text to a bigger size, the graphics don't get resized just the text. So this might not be the best option for PDF's with a lot of graphics in them.
Did you think about checking out the 700 instead of the 505? I don't have a 700, but from what I've read here, it seems to handle PDF's alot better than the 505.
Windows will treat your 505 like an external storage drive, so you can just drag and drop files onto it in Windows Explorer--no need to use the Sony software if you don't want to.
You can either delete files from Windows Explorer, or with the new firmware, you can delete files directly from the reader.
Hope this helps--
dordale
