I wouldn't have said the reply was ambiguous, just evasive.
The developers say "We are going to focus on completing the full suite on the Mac over the next 12 months. After that we will look into other platforms."
I realise that "looking into" is a lot different to "developing" but the answer is from October 2014, which is already 12 months ago, and there is no sign of any alternative platform at present.
Probably a case of computer months being much longer than real world months, and if there is an alternative in the pipeline I doubt we will see anything for at least another 18 months.