First impressions:
I dig it, a lot. A bunch of old drones. I love drones. they don't talk back, you don't have to pay them, and they're not susceptible to mind control.
I like the rules for obsolescence as well. I think technology getting older and not working as well is very cyberpunk, especially in a world like SR4 where runs take place everywhere from Lagos to Manhattan: High tech and low life OR low tech and low life.
I'm looking forward to bringing these drones into my game.