it will be interesting to see what speeds ISPs see as a fault.
BT Infinity appear to be treating regular < 12 Mbps throughput at any time as a fault (of course this is to their speedtest site!) -- and I guess their benefit is large number of customers making peaks probably more gradual.
TalkTalk are also being quite specific on their website
"...guarantee your speed day or night"
Our great value Fibre Optic Boost will guarantee your download speed – at least 15Meg (up to a maximum 40Meg).
TalkTalk's *current* fup is at http://www.talktalk.co.uk/legal/fup.html
"all TalkTalk Customers have no restrictions on time-critical web traffic such as surfing, gaming, streaming content from applications like BBC iPlayer or using VOIP packages like Skype at any time."
Something tells me the talktalk offer is too good to be true, but I have to admit to be watching it if there's no info from sky/be.
BT is probably a "solid" relatively safe offering, but despite only using 100-200 pcm I have a beef/concern with the 300Gb limit combined with 18m contract as usage could change a lot