Great job demonstrating on multiple devices
@ColinJ
Another vote for Memory Map here. The 1:50,000 for £50 is a bargain and an excellent scale when the device (phone etc) has a GPS which can precisely position you on the map. With paper maps I found 1:25,000 useful for location purposes but a bit too big for route planning. The precise location + 1:50,000 is a great tool.
Yes - 1:50,000 for cycling.
I have just treated myself to the 1:25,000 version for planning walks, where the extra detail is very useful. That works really well on the laptop but I have come up against those file size problems that I mentioned in my previous post. It is supposed to be possible to split the map file into smaller regions so I am going to have to work out how to do that. I will probably do Wales, Southern England, Northern England, Southern Scotland and Northern Scotland, with generous overlaps.
I have used my phone's GPS to show me where I am on the 1:50,000 map a couple of times. That was when taking wrong turns on walks. (The 1:25,000 version would have been better.) The phone (Galaxy S4) takes a fairly long time to lock on to the satellite signals but after that it is fine. It does eat the battery life though, so I only use the map/GPS on the phone when I really have to.