The wizard is the same for old and new images and automatically detects the type of system being installed GP3.
The GP3 some plugins are not online yet, but will follow soon. (For example, OpenVPN)
A few words about the new experimental images of the house of DMM:
The pictures are well executed in flash on the DM8000 and DM7020HD,
For small boxes we recommend booting from USB / eSATA, because even without a web browser and HBBTV images are so large that little progress has space and can easily fail to update the box. Hopefully DMM still finds room for more of the picture box to save.