Disappointed MudMap Customer missed out on Upgrade

[Drewboyaus]

MM HD was never superseded, they just released a different version that does different things

That's true only to a point though Todd. I say, if you can no longer purchase the previous version (which you can't) it IS superseded.
Does it also mean they will be developing new features for MMHD? That is what it means to truly support something, not just updates to make sure it works with the next version of iOS. Are they going to add campsites etc? This is what other app producers do when they develop something.
The analogy with Angry Birds is a poor one. Angry Birds only cost me $2......not ONE HUNDRED AND FIFTY FFS.
I will frame my response properly over the next couple of days.