I understand that you want to be able to connect to the Slingbox using your Google TV. The SlingPlayer for Connected Devices is a new type of SlingPlayer! It works with a new generation of Internet-connected devices; right now it works with a Logitech Revue and Boxee Box. Have a look at this article:
Will other devices be supported, such as the Sony PS3 and Google TV?
When we released the product for the Logitech Revue, we found a few issues that produce a less-than-ideal user experience with other devices (see the Need help section below if you're having issues). We are continuing to work with additional partners to support their devices. Please check back with us to see if your device is supported.