I see Simon Calder is having a race today with Mark Smith (seat61.com) between London and Edinburgh.
Mark is on the 1045 Lumo service from King's Cross (running in the path of the first commercial service next week).
Simon saw the train off and then caught a Thameslink service from St Pancras to Luton Airport Parkway, then on to EZY 65 to Glasgow, intending to catch a Scotrail service to Edinburgh to meet Mark on his arrival.
Simon has a progress blog on the Independent site:
Lumo train launch live: Is it faster than a plane between between London and Edinburgh? | The Independent
and Mark's Lumo service can be tracked on RTT:
Realtime Trains - 171E 1045 London Kings Cross to Edinburgh
So far, both trips are running to time, Lumo having just passed Durham (was 9 early approaching York).
One comment from the blog: Lumo claim they are all-electric, while LNER are bi-mode.
That's not true if you are on an LNER 801.
Lumo can hardly claim they run "a different sort of train".
1345: EZY65 has landed a few minutes early at Glasgow; Lumo is at its Newcastle stop on time.