I loaded it on my 5600 and it works pretty well. I couldn't get it to sync with QTopia Desktop, but everything else seems like flawless victory. It is much faster than the Sharp rom both in the gfx and general responsivenes.
Test results:
Integer Arithmetic: 323572 dhrys
FP Arithmetic: 2.55 secs
Text Rendering: 652 chars/sec
Gfx Rendering: 2843.83 gops/sec
RAM Perf: 28MB/s,33.24MB/s
SD Perf: 28.1MB/s,33.53MB/s
CF Perf: 17.17MB/s, 936.66 kB/s