I came across a new Android gopher client called 'DiggieDog'
[0]. Nothing outstanding, but it works fine as a basic client and
even has bookmark support. It has the usual issues with garbled
display of ascii-art and line wrap, but I'm not sure it's possible
to fix those in all cases in the mobile format.

[0] https://play.google.com/store/apps/details?id=com.afewroosloose.gopher&hl=en_US