Sorry I cannot understand "any change to get your add-on translated in various languages like patchou's plus?" clearly. If you ask how to translate it, it is easy. Copy "Language_en-us.xsl" to other name, modify all the texts. Then open "AllSettings.xml", add new "Language" item for it's name/File, then you can select that new language in Setting window.
Can I ask for it to plus translators? I don't think I have that right... If you would, please help me...
About html log of plus, I think Patchou have his thinking, and never use my add-on...
Because xml/xsl is slow...... I think Patchou will do this using C++ that is much faster and more ability can do. Because many ideas is hard to xml/xsl so that I cannot implement... Like "abc@abc" email detect, custom emoticons... But if he would I will very pleasure.