Ok well Ben got me thinking about this from the other thread and I am curious where you guys think this is going.
Some folks on the steam forums came up with the theory that only females can use the ASHPD, I don't know how accurate that is but it would make sense for them not to want to give you full control of the portal gun in episode 3 and thus they could give it to Alyx. I am sort of curious both what you think of the validity of this line of reasoning and what you would think of that sort of gameplay mechanic.
PS - I would love to hear other theories if you got them, for example, I think there is a very good possibility that nobody gets to use the ASHPD.