It's some way away (if indeed possible) before we will have the ability to create, modify, and read DNA with the fidelity and speed that would make it of the slightest use in this situation. Naturally, any molecule capable of ATCG-style variation is also capable of storing data when an abstraction layer is placed on top of the base sequence. This isn't really anything other than a proof-of-principle, and it was really a given in the first place, so is hence really just a stunt.
@ Kwerk ... to answer some of your questions in the other post ...
Is there something "written" in that non-coding DNA?
Yeah. 97% 'junk' is a complete fallacy. Around 45% of our genome consists of repetitive elements, including around 9% retroviral sequences (relics of viral infection) that have become fixed in the genome. We are all, therefore, more retrovirus than human ...
Who wrote it?
Transposable elements and viruses.
Why did they write?
Because that's how they replicate.
Will they come back to read it?
Lots of repetitive elements are active, though the type of element varies between species. Certain LINE elements are active in humans are there is suggesting that the genomes of different cells in our bodies are 'mosaic' due to their movement and insertions.
Are WE meant to read it?
Hell yeah. If we weren't, I'd be out of a job
