Not to go into too much detail, as I don't want to 'advertise' in a thread for another ISP, but I got my account while they were on special for R258. It's an OpenWeb Gold 384 account, on the VB backbone. I've been downloading without stop for the last four months and haven't been shaped or throttled even once.
The unfortunate thing about this is that it will probably only hold true for the first few months. Then it's going to fill up with more users, and the quality will degrade to the point where it's pretty much the same as any other offering. It's unfortunate, but that's pretty much the way every new uncapped offering goes.