Here is my take...
Nothing major, or at least that is visible to us mere mortals
Yes, and with a similar product set
has so never
will - unless you are prepared to pay for 1:1 uncontended access.
Loop Scorpio Ltd
Ledbury Broadband; Highnam Broadand; Newent Broadband; Painswick Broadband
Now also offering 20 Mbps symmetric broadband!