Scottish Citylink run a regular service between Edinburgh and Glasgow (and other cities) and one of their attractions is that the buses are Wi-Fi enabled to let you carry on working while nipping across the central belt of Scotland.
And it’s free for anyone taking the bus congratulations to Citylink for not trying to get another few pounds out of their customers!
I had a similar experience in Spain. They had the most luxurious busses I have ever seen: leather reclining seats, wifi, beverages with service. Funny thing was, I had to go several hours in a commuter bus to catch the luxury one. Talk about a difference of experience ;). Although the wifi service was a bit spotty at times.