Have you tried this yet in practice? I'm expecting it makes Haskell more suitable for web stuff since that's where low latency is often more important than computational performance is.
I only meant that this low latency garbage collector has stronger positive implications in concurrent web stuff than in many other domains.
I merely meant that this is a welcome upgrade that specifically benefits web applications, even if it carries a minor computational performance penalty.
[Disclaimer, I work at the company behind this.]