Welcome. Us sl5500 users are still here. I have been through most of the roms available and found that tKc and Hybrid are my favorites. I keep trying OZ with (mostly with OPIE, but I did take a look at GPE on the last release), hoping that it'll get better. I like the concepts and the look & feel of OZ, but in practice, I have trouble getting certain things to work.
hybrid-sl5500-64-0-v1.1-qtopia-1.6.2
1 GB Lexar 40x CF
512 sandisk sd (which gives me no trouble)
No Direct Syncing,
I sync Portabase, KOPI and KAPI with thier desktop versions, via CF