As @yifanlu mentioned, molex terminal and hougins are just and right size and pretty much stable than expectations for Kindle Touch serial port, I confirmed.
http://www.molex.com/molex/products/...ard_connectors
Receptacle Housing 78172-0003
Receptacle Crimp Terminal 78172-0410
other photos:
http://www.flickr.com/photos/hondama...7628233938657/