Phase5

Such boards also typically featured onboard RAM controllers with access to faster and greater capacity memory.

Minimizing such context switches required a large amount of effort and planning, making adoption of mixed binaries somewhat unpopular.

German company Haage & Partner developed a competing multi-tasking kernel called WarpOS for the Phase5 PowerPC boards which operated in a similar manner, but was not code-compatible with PowerUP.

These were to be developed with QNX Software Systems with the intention of building an alternative to the official Amiga solution of the time, to be known as AMIRAGE K2.

Much of Phase5's skill and experience was retained in a new company, bPlan GmbH, which in partnership with Genesi produced the Pegasos, a final realisation of several attempts to build an alternative Amiga system.