I've just received Email from R4ids has released the new Firmware 4.0B1 but is not Multi-Rom or EmuNand but they said the new coming 4.0B2 it will include Multi-Rom/EmuNand and Online Eshop but I hope this new Firmware doesn't break the Nintendo 3DS.
http://r4ids.cn/news.htm
http://r4ids.cn/news.htm