OK, dumb question coming from me, who has built and maintained computers since the early '80s, but I'm not quite sure about file structure and access from Android. I've heard different advice regarding swapping SD cards. I have a 16gb Class 10 that will go into the Evo 3D. The only thing I want from the old card is music, but... For games like Angry Birds, Peggle, etc. is the level stored within data on the SD card, meaning that transferring this information over puts me in at the same level I'm playing on the 4G? Is user authentication (non-browser) from apps stored on SD card, so that copying these folders over prevents me from having to remember? Most of my userid & PW is in lastpass, but there are a few silly apps that I will likely not remember. I've heard its best not to copy, there is lots of old app information that should probably be purged from SD card. At the same time, the more popular advice is to just copy over everything from old card to new. Then there's an additional twist, that there are some freebies on the new phone's card. Thanks in advance for your advice, polite ribbing, old age jokes, etc.