I think so.
- "Early technology"
- the design of the acid suit
- the planet is in our solar system
- and it looks like Earth
Mondas (according to Wikipedia):
In a comment on an earlier post Matthew Celestis said...
"Mondas is Earth's twin planet, identical down to even the size and shapes of its continents. Millions of years ago, it was the tenth planet of the Solar System, until somehow it drifted out of its orbit and journeyed into deep space. In Mondas' first appearance in the 1966 serial The Tenth Planet, it is stated that "Mondas" is another name for Earth in one of the ancient languages (compare mundo).
What exactly moved Mondas out of its orbit is not known. According to the book Cybermen by Davis Banks it was the arrival of the Moon in orbit around Earth, but the canonicity of this is uncertain. According to the Cybermen themselves, the Mondasians were once exactly like human beings, but to remove various weaknesses such as a decreasing lifespan, their scientists designed cybernetic spare parts to replace the organs of the human body. They also considered emotions a weakness, and removed those from their brains as well, becoming extremely powerful and long-lived while at the cost of becoming cold, logical and machine-like in their ruthlessness. It is unclear if this conversion process arose because of environmental necessity after Mondas left its orbit or for other reasons."
You did not even mention The World Shapers strip, in which Mondas turns out to be Marinus (the planet with the acid sea) and the original Cybermen, the Voord in their acid suits.and
You knew The World Shapers was by Grant Morrison, so I thought you knew that already.So, perhaps, at last, we are going to find out what moved Mondas out of its orbit.
Of course, I don't think Grant Morrison had actually watched The Keys of Marinus before writing The World Shapers, as the only thing from that story he references is the Voord and the name of the planet.
It does make a lot of sense. A computer governing people, blokes with handlebars on their helmets, a very earth-like planet (apart from the acid sea) and the peculiar fact that the old bloke at the beginning seems to have lived quite a long time (partially cybernised).
Lance Parkin considers Mondas as Marinus to be canonical. Tat Wood and Lawrence Miles dismiss The World Shapers as a bit silly.
(Though I can't work out why Dusty Springfield would be playing on Mondas, not unless its peoples were identical).