Unicode support

Hey, I can't find any recent discussion in this mailing list on this topic, i think that most close one is http://grokbase.com/t/php/php-internals/143b6aevsp/unicode-strings. I was also reading papers like that: http://www.infoworld.com/article/2618358/application-development/php-5-4-emerges-from-the-collapse-of-php-6-0.html Latter is referring to difficulties like "excess memory usage" and "rewrite the language". I'm developing an open-source Unicode implementation library (nunicode), and it doesn't consume any heap at all, it also works on native binary strings, as PHP does. Hence i thinks that maybe it could help with at least these two problems. But i hardly understand if my work is even applicable here. My library is a rather pragmatic implementation, it's conformant to Unicode 7.0 and ISO/IEC 14651, but it does not implement the whole Unicode specification. I would appreciate if someone would point me to a good read or explain collective opinion on this topic. I'm basically interested in the following questions: 1. Is there a need for more Unicode support in PHP? 2. What is currently missing in that regard? 3. Is this a good place to ask such questions? Thanks.