I'm building a app as a mobile POS for the iPhone. I have the requeriment to support printing to a mobile printer (like http://pos.epson.com/products/prodsPMOP.htm). I know that the status of native iPhone printing is still gray right now, but considering that: - I'm free to decide which kind of mobile printing I will support. Only requeriment from customer is that must be suitable for sales on the road - I have time. I expect launch the App in 2-3 months, but can delay native printing to 6 months. - I know about wireless printing,like HP have in the AppStore. That is ok, I will support that, but is just not enough for that customers. So, where to start? Where to look for code, or advice?