Ok, my Nokia N73 works great now. Here is info

<config>
  <bluetooth_address>MAC here</bluetooth_address>
  <bluetooth_channel>10</bluetooth_channel>
  <interface>0</interface>
  <identifier>PC Suite</identifier>
  <version>1</version>
  <wbxml>1.2</wbxml>
  <username></username>
  <password></password>
  <type>2</type>
  <usestringtable>3</usestringtable>
  <onlyLocaltime>1</onlyLocaltime>
  <onlyreplace>0</onlyreplace>
  <recvLimit>10000</recvLimit>
  <maxObjSize>50</maxObjSize>
  <contact_db>Contacts</contact_db>
  <calendar_db>Calendar</calendar_db>
  <note_db>Notes</note_db>
</config>

I use Hardy Heron, syncml obex client, evo2 sync, multisync0.90 and opensync 0.22

This same config also worked for me on my Nokia E65. One thing I encountered was that the username/password functionality doesn't work as of opensync 0.22, so make sure to leave it blank on both the phone and in opensync.