There are numerous phylogeny viewing programs available, which ones do people use most often? Are there features (e.g., visualisations, data formats, size of tree that can be displayed, annotation) that people feel existing software lack?
I'll declare an interest. I'm the author of http://taxonomy.zoology.gla.ac.uk/rod/treeview.html, which is beginning to show its age. There are some other great tools around, so I'm trying to gauge whether TreeView should be allowed to die gracefully, of whether I should invest time in developing it further (see http://darwin.zoology.gla.ac.uk/~rpage/treeviewx/ ).