Re: Flat-rate access
My concern here is who decides what "valuable bit" are?
For ISPs that are bundling other services, such as IP TV or similar, there is a major incentive to prevent you from getting such as good service from other competing suppliers. Extend that to a general case where ISPs cut secret deals with some of the big players on the web and you have a recipe for anti-competitive practice.
It may not be framed in the style of targeting certain competitors, but if they have crap back-haul capacity and rely on caching of their own/partners offers then they are, in effect, selling you a discriminated service.
What should be happening is the ISP deal you get provides some guarantees of 'service' (say bandwidth and/or latency) for those services that matter, such as on-line game play or VoIP, that are detached from who they connect to.
That is how I support net neutrality: not a free for all but an honest arrangement where you buy connectivity of differing grades according to needs, convenience and price (e.g. cheaper and faster general purpose data transfer at night, for example).
The one-price-fits-all and weasel worded 'unlimited' deals are simply dishonest, and OFCOM should have been stamping on ISPs for not providing understandable and measured performance for the various prices they offer.