>> I would guess it might require hardware accelerated
>> graphics operations to be reasonably fluid on the type
>> of PowerPC hardware that MorphOS supports.

> I'm confused and don't understand (not surprisingly) [...]

Considering that Folio is essentially a web app running locally inside a stripped-down Odyssey (Kite, see comment #18), I guess that "hardware accelerated graphics operations" may refer to hardware-accelerated Cairo or even WebGL within the browser environment. The requirements to implement the former are probably met by the OS, but the latter would require OpenGL ES 2.0 or newer to be supported by the OS.