only the iPad 2 will do 1080p out, so if you plan on using this on the first generation iPad and if the jailbreak doesn't do 1080p out, then their is no advantage in getting the HDMI adapter.
only the iPad 2 will do 1080p out, so if you plan on using this on the first generation iPad and if the jailbreak doesn't do 1080p out, then their is no advantage in getting the HDMI adapter.