Hi, 1. I do not know the exact answer; I use 32 GB microSD but there is this thread, maybe it would help: Will 64GB microSD fit in N900? 2. Don't know, never used... 3. I don't know if you are interested in this but according to the wiki you can do a query for saved connections when you type: gconftool -R /system/osso/connectivity/IAP jm