A sub-ledger designed to bypass Digix Gold token transaction fees can be created but is not economical as they would need to be able to recalculate the storage fee demurrage that is normally charged to the token holders. This would require additional gas fees to run their transactions and in most cases would cost more than the TX fees charged on the standard Digix Gold token ledger.
Other points to consider:
- DGXFREETX contract would need to tell the exchanges, payment processors, and others to use their contract as the ledger of accounting. Making deals with other companies costs time and money.
- DGXFREETX would also need to develop all the peripheral tools and services such as mobile wallets, Point of Sale apps, and other things that DigixCore (and DigixDAO) will be creating for the ecosystem. These things cost time and money to put together.
- DGXFREETX would need to create its own network effect of users who will use their ledger. Marketing and user acquisition costs time and money.
It is not really possible for them to run a service that doesn't have any fees. There's been this popular belief that you can't create profitable ÐApps because it's easy to copy them and we disagree with that notion.
For instance, it is easy to build a search engine that implement's Google's PageRank but you don't see companies even coming close to competing against them. It's because they have a brand which they have built and that plays a very big role in user acquisition. Just like with Google and other popular brands, DigixCore and DigixDAO will put significant efforts in building the brand through marketing as well as building great products for people to use.