5.7Mbps upstream as opposed to the artificial limit of 56kbps upstream currently imposed on much of the infrastructure now? Pull the other one, it has bells on!
3's mobile broadband has been going down the toilet for the last 6 months and the inherent problem is that most cells simply don't have the backhaul to cope with existing speeds/customers.
Raising headline speeds sounds good but until the basics are addressed it will still be rubbish. I for one won't be holding my breath, nor will I be renewing my existing contracts with 3.