The title is misleading (currently: Io.js is one step closer to ARM). io.js already supports armv{6,7}. You can download these binaries here: https://iojs.org/dist/v1.4.2/
This change introduces preliminary support for armv8 (aarch64) which was merged to pave way for the upcoming upgrade to openssl 1.0.2 -- well, at least merged at this point in time.
The "bigger news" is that ARM has contacted io.js, offering additional architectures for io.js to build on (where specifically armv8 was introduced). Read more here: https://github.com/iojs/evangelism/blob/master/weekly-update...