I don't think its feasible, but I don't think the people who decided to start suing have realized this quite yet. I doubt these people hold the same beliefs everyone in the organization does, but they are the figureheads and make the decisions. As bad of a strategy as it may be, waiting for a change in leadership might be the best option available.
Also, its just Mac OS X with a lot of icons in the dock.
> Is it feasible for all the ISPs to be taken to court?
Yes. And it is much referable from the point of the ISP's, as that way they will avoid legal responsibility. If they start closing the connection to some servers because of illegal content on their own initiative, they increase the risk of being hold legally responsible for allowing access to the content of other servers.
At least one Danish ISP (tele2) has closed for access to Pirate Bay after could order.
It is not (directly) a question of money, but of legal responsibly. If they start actively censoring the content of the data that passes through their network, they risk losing the local equivalent of common carrier status, and become legally responsible for said data. That is obviously a nightmare scenario for the ISP (and a wet dream for the RIAA equivalents). But as long as the ISP's just follow court orders, they are reasonable safe.
"ISPs refuse to censor Pirate Bay"