I'm in the US, so know only what I've been able to read. If this "dialer" is a simple front-end to their access number database, I wonder if someone will break the database and post the numbers on a public web site (what NTL should have done in the first place)?
Alienating non-Windoze/Mac users won't kill their business, but I do hope it buys them some really bad publicity. ;-)
Todd