If union leaders are doing union business on company computers then they are idiots, but I think that's already been established.
Computers, iPads are company property. Crew lounges are company property. They can pretty much do what they want. My Pad will be shut off on the employee bus and put in the closet when I get home.
I've flown with a couple of companies when out on furlough using tablets, you will love them. Quick search whatever subject you have a question about. Every manual available. Pull up a chart and expand it ( for the over 40 club). And it saves the company big money. Which puts more in the pot for us to negotiate for and keeps us employees. And no more stupid flight bags.
It's a good thing.