De Javu!!!

Has any one else noticed the Easter egg in Alien and Blade runner? There are a couple of images that appear on the Nostromo's flight computer/screen when they are making their descent down to the planet!! The same image appears on the flight computer/screen of the of the police vehicle that is taking Deckard to the police HQ early in the movie. Here's a really random theory...Deckard and Ripley are from the same universe and same timeline and the software on the Nostromo and police car are a standard navigational package!!! may be only one software giant supplying every one.... Yeah I know Ridley probably just wanted to save a few Bucks on SFX...