I think this is only a temporary delay for shoppers. Most Poles using modern electronics are already used to 'losing' Polish fonts and diacritics, and we can live with that without any problem. And if there are any funny signs instead of our native letters a quick patch should fix those easily. So, it may be a potential problem but only for people unaccustomed with modern gadgets, who probably wouldn't dare/dream to buy eDGe in the first place.