Is it possible to mount .iso files (virtual optical drive) on Android?
Underneath Android is Linux kernel. So if you install a custom rom with a custom kernel on any of tablets you can do that. The kernel should have loop device support + CONFIG_ISO9660_FS module or built-in. Then you will need root+busybox. Install some terminal emulator and type this commands:


su
cd /sdcard
mkdir mountpoint
mount -t iso9660 image.iso mountpoint -o ro,loop


Also if your iso contaions UDF file system you will need kernel UDF support.