I am guessing you need to update the index. (You transferred it on there via some means other than OTG USB then?)
dbus-send --system /default com.lab126.powerd.resuming int32:1
or just toggle usb mode or something
KindleLauncher-1.0 is the correct launcher - I will update the docs that the older devices don't "display it immediately".
running 3.2.1 will not matter.
Does the DX even support kindlets? glerk I dont know hehehe!!!! nah - of course it does. *goes to check his dx*
Just update the index. I just pushed it onto mine.