Being new to the Eris and smartphones in general, I apologize in advance if I've missed something common-knowledge... Today I got a 16GB Class 6 SD card in the mail, one to both max out storage and to settle a hunch -- that the class of card (i/o speed) would noticeably affect how the Eris responded. Class 6 cards are about 30 - 50% more cash than Class 2, but triple the rated write speed. Just happened to find one cheap enough to try it out... Wow. Not only has everything from the pattern unlock screen to the browser become far more responsive, but the stutter for actions in the Sense UI is gone. Now, for the circumstances... formatted the new card and copied the entire old card's contents onto it w/USB & my desktop. Added another 2GB of music while mounted... still slick. Mind you, tasks themselves don't happen any faster... just the delay between them I'd gotten used to, vanished... Am I missing something? I'd hate to get anyone's hopes up, if this is just something that only resembles a performance tweak. Either the system or software use SD memory more than I'm aware, or this is all in my head. All I can say for certain is that my Eris is much nicer to use now.