I'm fairly neutral on the proposal. I've heard all the marketing puff before though, which tends to make me rather cynical. I don't think the brand name is particularly important in this instance - what matters is how Freeserve/Wanadoo treat their customers and how their systems perform. Unfortunately bigger does not always equal better (or more profitable), as I would argue that Tiscali have demonstrated to all the old lineone, worldonline etc customers, (of which I was one).
It's also common practice to retain established brand names under a corporate umbrella as it makes it easier to sell off unprofitable areas, so I suppose it could be argued that Wanadoo are demonstrating commitment by moving to a common brand name, but ultimately it's the price, quality of service and customer satisfaction that matters.
I would argue that Freeserve have not performed exceptionally well in any of those areas since they were taken over by Wanadoo, so there is plenty of room for improvement.