well, the log didnt go back enough to when i used jb.sh
but at each reboot i got this:
Welcome to Kindle!
kindle login: info hardware:no_wan::WiFi only device. No WAN found
info system:emiting_event:loaded_ppp_async:
info milestone:9.53:fs00:
debug sytem:event_emitted:loaded_ppp_async:
info filesystem_keys:not applicable for this device type::
info system:emiting_event:loaded_fakekey:
debug sytem:event_emitted:loaded_fakekey:
info filesystems_var_local:runfixup:Running /var/local/system/fixup:
info jb_bridge:install_mkk_dev_keystore::Copying the kindlet keystore
info filesystems_var_local

B PARAMS:FreePageSize:2048 bytes.
this seems to me that the bridge is working, right?