It can handle both an SD card and a SIM card for a data connection. The SIM could also indicate that it will do voice calls. Dell’s Streak can be a normal phone if you want. It uses Bluetooth 2.1 too.
Looking Glass is unusual in the Tablet world because it uses Nvidia’s Tegra 2 processor. This is designed to do all the normal tablet things, but handle advanced graphics while preserving battery life.
It has only been seen in LG’s Optimus 2X phone which was only ever released after dark in the depths of Korea. Few have ever checked out Nvidia’s claims for the chip.