I have been looking at USB OTG cables when I saw an example of a OTG keyboard connecting to the Fire HD. I would like some sort of non-wireless portable storage solution and was wondering if anyone has hooked up a USB-card reader or other drive? I've never used these and have no mobile/android experience, so this is just a shot-in-the-dark.
Also, is there any chance that one could tether the Fire HD to a kindle 3G network? I remember reading something about peer networks not supported with the Fire, so probably not....Although I just read that Amazon has limited the amount of data xfer per month on the 3G network - because of tethering use, so perhaps it can be done?

for any info!