I don't know man. No native pdf support, I can't get the pdf books I already have onto it because it won't reader PDFs from the SD card. I have to PAY to read free blogs. Sounds like a lot of potential but not much utility. I suppose they have to defray the EVDO costs but it sucks.
You have to email the files to a pre-specified address and they convert it into the native format and push it to your device. There is a 10 cent charge per file to do this. It seems PDF conversion isn't supported (at least from reading the manual I found on Amazon) but that may change.
Think of it this way. If apple suggested that you can transfer AAC files to the ipod for free but you have to pay 10 cents per MP3 you want to transfer, would you like it?
Turns out there is a free alternative but it sucks (takes 15 minutes per file)..and that's now without the system being overloaded.
Also, what makes you think that I purchase all my documents? What about papers I have downloaded off the web for free? Technical documents? Reports? God. The device has USB. It has an SD card. It has EVDO. But I can't transfer my DOC and PDF files directly without waiting for 15 minutes and/or paying 10 cents per file?
The design is ugly, but the capabilities rock out.