Hyperion-Entertainment has this web-page posted about AmigaOS 4. It's loads faster than 3.9 due in part to the new slab allocator for all memory allocations (not to mention that it runs on PowerPC processors with 10x the processing power of a 68060). The downside is that you need an old CyberStorm PPC accelerator in an A4000 and a not-yet-released "classic" version of AOS 4 to adequately get AGA compatibility from it. Everybody else has to depend on EUAE to emulate the old chipsets for the AGA and ECS games. Anything written for Picasso96 graphics and AHI-compatible sound cards will run great, however.
