We've discussed them before, but I've seen changes in the way mine performs and wonder if others have, too. I'm with Alltel and was reasonably satisfied until the last few months. It never had broadband speed, but was good enough to do what I needed. What I'm seeing more and more is slower speeds and repeatedly being disconnected. It happens when I'm on towers other than Alltel. The folks at Alltel say that they're having problems with the companies they've partnered with, such as Sprint. As cards become more popular, the towers have trouble supporting the volume of data, even for their own cards. So, I'm just wondering how others are doing with their cards. I've got about 9 months left on my contract and at this point I would probably change providers.