Hi ! For those who are interested in knowing what the original developer (Pascal Naidon) had in mind for Pencil, I suggest to read the document he wrote about it in 2010, The vision for Pencil.
It could be a great source of inspiration, although we should not take it as a bible and consider that some ideas can be good, others could be bad; and that the context has evolved.
I think it also needs some reimagining for today's software environment, which has changed considerably since 2009. Cloud services, multi-format, multi-national, multi-language distribution. It needs clarification on the audience (audiences?) it's targeting, and to let all these factors guide its redesign and subsequent redevelopment.Happy reading !