NetBSD has bluetooth support since previous month, and its API is very similar with Bluez, anyway there are differences. I've implemented support for openobex-1.3 (the patches are the same than I committed into pkgsrc).
Can you please apply them in the repository? I would like to have this patch removed for the next openobex version.
I can confirm that obexapp and openobex are working fine with NetBSD and bluetooth, thanks for your work!
The full patch is at: http://www.xtrarom.org/~juan/openobex_netbsd_bt.diff
Please post this to the openobex-users mailing list.