It's historically relevant that at the time of those remarkable accomplishments Sophie was named "Roger". And this is an article about history, isn't it?
It might be an interesting adjunct to how a part of the tech community treated one of their own with acceptance but beyond that, no, not terribly relevant. If anything, that's entirely incidental to the story, other than the fact that the Acorn community was very accepting of her transition.
Consider the following scenario. Let's say Sophie was born female and never needed to transition. Now, let's say that she got married after Acorn folded in the late '90s, and took her husband's name. In that case, we'd refer to her by the name she uses now, not the name she used then. The same goes in this case.
The article includes a short paragraph of biographical information, including her date and place of birth - maiden name would usually be mentioned with that, especially if she had done relevant work under her maiden name.
Another good example is Lynn Conway [1][2], that together with Carver Mead wrote "Introduction to VLSI System Design" bestseller that would catalyze the Mead & Conway revolution [3] in VLSI design in late 70's, early 80's.
Interesting, certainly, to find out that a technically accomplished womaan is actually transgendered. It is also interesting (and perhaps relevant) to know that she accomplished these things in an environment where she was percieved as male, and therefore had none of the friction and other problems or issues that might be encountered by women in such a male dominated field. It's great that she was able to keep her role, and was accepted as a woman afterwards, as well.
It also seems to be more likely (than in other fields) to find trans woman in IT, but I worry that this is simply confirmation bias at work? I wonder if there is any research on the relative statistics of trans folk in the IT industry?
EDIT: Thinking about it, perhaps it is just that, as with the GP comment, people are more likely to bring the fact up in a field like IT, where 'facts' are held as more important, and in other areas it would simply be ignored or not mentioned?
The relevance is that Roger Wilson was a notable figure in the 80s and 90s -- he and Steve Furber were a powerhouse team. As far as I know, she transitioned to Sophie after her rise to notability, and she's quite a private person, so it's likely that many people who are very familiar with Roger's work will never have heard of Sophie.
It's an important clarification, just like we call the artist that insists on using a new graphic symbol for his stage name "the artist formerly known as Prince".
How else are we going to keep track of one person's name changes over the years? It's just common sense, really.
