POS is simply wildcard term, just like ERP. To implement any new feature we have to at least know what wishers mean. Current functionality named POS (direct invoicing and point of sales definitions, also foreign codes feature) is just what is enough for me. I know it is far too little for most other people over there.
There were a couple of prepositions regarding POS beginning from full implementation inside FA, via integration of third party applications up to loose data synchronization. In fact to begin such a big task we at least have to know what FA community consider satisfactory set of features to name it POS.
Some time ago on growing demand from FA community we have established FrontAccounting wiki. Unfortunately so far the main authors are still Joe and me. Seems that all the energy of other forum members has been exhausted on discussions how the wiki should be organized. Nevermind.
Anyway if you are really interested in POS functionality, the first step toward implementation is to write down some functional POS specification, and describe which features are necessary, which are optional or just a candy. The wiki system is ideal for such cooperation effort, and you can be the pioneer which decides about future shape of POS.
I have just switched your status to senior member, so you have write access also to Devel group of pages, so you can start to turn your wishes into reality .
Janusz