'Silly-SMP' is a project to determine "What are the minimal changes needed to AROS to support 'full' SMP? Is it even possible?"
This is Research with a capital 'R'.
But that '25% of the time' _does_ show that a full SMP system on AROS is possible.
This is quite a big deal for the Amiga world - and proves that, in my view, AROS has more of a future than AmigaOS will ever have: it's portable, and it's open source, so experiments like this are more likely to happen.