I've had my 8XT for a few weeks now and absolutely love it. I want to load more music/podcasts (for my commute to work) but I cannot figure out how to put the SD card in. I've searched around the forums here and elsewhere with no luck.
Its difficult to open the back, it just slides up, but what I had to do was push up and get it to just get a little opening, then get my fingernail in there to keep working to slide it open.