Plugin works for 32bit (not 64bit) OSes. (App works with any CS5 or newer)
The plugin works with CS4, CS5, CS6 systems for MacOS or Windows that are running 32 bit. It will not work on 64 bit.
Please note, 32bit restriction is is for the plugin. The app will connect to any variation of CS5, CS6 or newer with Photoshop Connect.
Update October 2012:
Read about connecting the app to Photoshop.
Last Modified: 15-April-2010