The simulator shows some information about the phone, such as 360 degree overview of where the power button, earpiece and camera are located (like you couldn't figure that out yourself?), as well as how to use the software, streaming video, and camera. Under the 'discover more' section it will guide you on how to download and install apps though the Android Market, connect to a Wi-Fi network, use Google Maps for driving directions, setup and pair with a Bluetooth device, add and remove desktop widgets, and how to setup the Wi-Fi Hotspot. All of this is pretty basic stuff, as nothing too advanced is shown, but at the end it does list all of the phone's specifications.
It's still not a release date, which is what everyone is waiting for at this point, but there are also listings on the Best Buy site for the Thunderbolt's screen protector and purple soft-shell case.
source: Best Buy