I've got one on mine, but there is no app-to-sd button on the apps.. on the menu.. but sense i've put it in most of the stuff i download goes straight to the sd card(such as non-market apk's), i literally just got mine yesterday, but that's what i've gathered so far.
Has anyone been able to use a MicroSD card on their A100? It shows in setup but is basically unusable, it's there but you can't move anything to it.
Great question and I would love to know how to do this as well. I emailed Acer but they say they need to know what my serial number is before they can answer the question.... not sure what that has to do with anything. When I finally hear back from them, I'll be sure to post here.
I don't have my tablet at hand, so I'm going on memory here. The preinstalled apps can find content on the sdcard, the path to it is something like /mnt/external-sd for apps such as file managers. Also if you connect the tablet to your pc you can access the internal storage and the add-in sd card as separate drives.
You can move Game Loft games to sd. There is an app in the market called GL2SD. It works with more than just GameLoft games, but the list is limited as to what you can move outside GameLoft. I have not tried, but you can manually move games as long as they fall under the corrects sdcard-external/data directories.
BTW, Honeycomb does not have the move to SD option as it uses the entire internal storage. Unfortunately, with the locked bootloader and the way Acer set up the mount points, until the bootloader is hacked, you can't mount symlinks to external storage.
4/24/12 I got the ICS upgrade today and although the A100 recognizes when the SD card is inserted, I doesnt recognize the additional space and I still have no option to move apps. Even apps2sd from the market says I can't do ot.. Anybody have an idea here?
From what I understand, ICS has the ability to allow apps to sd, but it's up to the individual companies to include the feature in their release of ICS. So far, as far as I know, not one company has included it their ICS Update. It seems to me that Google/Android is trying to move away from External SD cards and removable batteries, which I'm not thrilled about. As a result, my next phone and tablet must have a LARGE battery and a minimum of 32 GB of internal storage. Bottom line, I think we're all stuck with the original 5.36 GB that the a100 came with.