Well this is a good sign:
OpenBSD 4.0 ZAURUS#0 zaurus
Sep 14 00:30:43 zaurus /bsd: ubt0 at uhub0 port 2 configuration 1 interface 0
Sep 14 00:30:44 zaurus /bsd: ubt0: vendor 0x1131 ISSCBTA, rev 1.10/3.73, addr 2
Sep 14 00:30:44 zaurus /bsd: ubt0: Interface 0 endpoints: interrupt=0x81, bulk-in=0x82, bulk-out=0x2
Sep 14 00:30:44 zaurus /bsd: ubt0: Interface 1 (alt.config 5) endpoints: isoc-in=0x83, isoc-out=0x3; wMaxPacketSize=49; nframes=6, buffer size=294