Series name for Singularity Sky

[Kara]

Charles Stross wrote two books in a series: Singularity Sky and Iron Sunrise. Few editions on Goodreads have any series information associated with them; those that do identify it as the "Singularity Sky series." Wikipedia calls it the Eschaton series, but that risks confusion with Frederik Pohl's Eschaton trilogy. Stross' official site doesn't list these books as belonging to any particular series.

I haven't been able to find anything that implies Stross has more books planned in this series, at least for now. In view of that, I'm inclined not to treat these books as part of a series at all; Iron Sunrise is merely a sequel to Singularity Sky. But I wanted to get some other thoughts on this. Do you agree? Or is it more appropriate to identify these books as part of either the "Singularity Sky" series or the "Eschaton" series?

[This Is Not The Michael You're Looking For]

I'd call it the Eschaton series (there are many other series with the same name by different authors, so the potential confusion with Pohl's trilogy doesn't bother me), but in a case like this I think any of the three options (singularity sky, eschaton, nothing) is very defensible.

While there is a difference between a series and a set of sequels, from a practical standpoint we don't tend to really distinguish them.