I am currently playing in a game using the Worlds of Android book as a setting guide. We are actually using the Cypher System as the rule set, and it has been great. Robust enough to do what we want but not bogged down in rules like other systems. We love the setting and have been having a blast playing in it. The book is quite useful. You can find some wrtie-up of our sessions over at my website (my20sidedlife.com) i am woefully behind but should be posting more soon.