I have a Acer Iconia A100 tablet. I have a few questions about the sd card. I put in my stock 4GB micro sd card from my phone. When I go into Manage Applicatons on the tab and try to move any of my apps to the sd card, it doesnt give me any option to do it. I have just rooted the tablet. How do I get it to where I can move apps to the sd card? Also, I noticed when I get into ES File Explorer to see what files I have, I have noticed 2 apparent sd card places, (/sdcard/, and mnt/external_sd/). Are these two different sd cards?? I dont understand. By taking a brief look, they appear to have the same folders. Should I just be using one of those places? When I have downladed a MP5 file, it downloads into the /mnt/external_sd/ part. Also, one more question, I am going to be getting a bigger sd card, is there a easy way to transfer all the folders from the current sd card to new one, and what is the largest sd card that will work with this tablet?? Thanks for anyone that can give me insight into these questions.