All this talk about UIs prompts me to remark that as a long-time Mac user I continue to find BIAB's UI decidedly PC-like ie overwrought and unattractive. As Mac users we are used to a certain slickness/cleverness in design. This matters on a brand level because the overwhelming majority of professional studios use Macs and they too are used to the Mac way. I believe that a sound strategy for PG to gain mainstream acceptance is to get pro acceptance. Then schools, music courses etc will feel obliged to introduce BIAB to their students. As it stands, BIAB has a kind of home hobbyist image that undermines its powerful functionality.

I don't mean to raise anyone's ire btw. I usually try to stay away from the usual Mac/PC needling.

On a related note, given that the realtrack concept surely has to be the way forward for music I'd very surprised if some big companies (I'm thinking the Apple Logic team for instance) aren't already working on their own algorithms. There are opportunities and threats in the market for PG. It's interesting to read that PG has partnered with Microsoft. I hope that's the right way forward.