IDX is coming. IDX is coming. Coming to Hudson county. Parts of the US has had it for years. Most of NJ has it…and here it comes to Hudson County. Buyers. good news. IDX will allow you to go to a website like mine which will have IDX and see many listings from other participating realty companies. No longer will a buyer only be able to see REMAX listings but many many more. Look for it by the end of the summer.