Hi, I just started to use your module, and I have few suggestions :)

- Why not include the README.txt file in the module ? I found it on the module page (read documentation) but people are used in general to read the readme in the module folder.

- I have an idea that might make the theming even more flexible. Some people (like me) would prefer to change the text of the pager, and I think that it might be easily possible by having the text in the template.
So instead of having this :

you would have :

where $next is only the path to the next node, embeded in a link function. this way, users could modify the text of the link very easily.