i had almost the same problems as recyclebin described. my N800 fried totally three 8Gb Transcend cards for now. first was class 2 that after installing the latest firmware in some time threw all my data to read-only, then it completely corrupted next class 6 card after a 1 week of usage (with multiple FAT corruptions during that week), and now it burned my new 8Gb Transcend after 2(!!!) hours of use. i must say this entire situation is disguisting and drives me mad. it is completely unacceplable to release a firmware that does such hardware(!) crashes almost like a famous WinChih virus to expensive electronic devices.

Nokia SHOULD do something as fast as possible!