There was a recent thread about 4GB SD cards. I just saw reviews of people who used Adata Turbo 4GB cards and some of them had incompatibility problems with various (non-camera) devices. http://www.pricegrabber.com/rating_getprodrev.php/masterid=12217348/id_type=masterid
This is an indication that the technology is not well established yet, and that early adopters can face compatibility problems with cards of various brands, and especially those that are "off brands". I hope this would be useful to some people. Igor
