I have just returned from vacation, the N800 was a great way to keep in touch and upload photos to the web. However one thing I would really like for it is a battery powered bluetooth card reader that will allow me to move photos from a Sony memory stick to the 8Gb SD card in my N800. I have found some bluetooth card readers but unfortunately they are all power by USB Does anyone know where I can find a bluetooth card reader powered by battery? Here is an example of one powered by USB connection :: http://usb.brando.com.hk/prod_detail.php?prod_id=00280