That sounds pretty cool - with an ARM chip of this calibre , what kind of speed could we hope to achieve?
The Raspberry Pi 2 will emulate a 68000+ECS Amiga generally without slowdown. Full speed 68020+AGA emulation is a challenge (not there yet) on the Raspberry Pi 2 but Amiga emulators are only using 1 core (using more cores to boost performance is also challenging).
Raspberry Pi 1 single core ARM1176JZF-S@700MHz 1.25 DMIPS/MHz/core = 875 DMIPS/core
Raspberry Pi 2 quad core ARM Cortex-A7@900MHz 1.90 DMIPS/MHz/core = 1710 DMIPS/core
Snookerdoodle dual core ARM Cortex-A9@667MHz 2.50 DMIPS/MHz/core = 1668 DMIPS/core
Snookerdoodle+ dual core ARM Cortex-A9@866MHz 2.50 DMIPS/MHz/core = 2165 DMIPS/core
Tabor dual core PPC P1022@1200MHz 2.4 DMIPS/MHz/core = 2880 DMIPS/core
The Tabor board puts the low integer performance in perspective as these are all power efficient weak RISC CPU designs. The P1022 is basically a PPC G3 design (introduced in 1997 like the Pentium II) with faster buses, more bandwidth, die shrinks for increased clock speeds (necessary for a shallow pipeline CPU design) and a non-standard PPC FPU. I won't bother mentioning the costs. Supposedly the Tabor board has a Lattice FPGA of unknown size. A big enough FPGA with unused gates could simulate the Amiga custom chips in the Snookerdoodle and Tabor offloading a lot of CPU processing power. There are many variables including how the FPGA is connected, what kind of graphics are available, etc.