Thanks for the link. That thread on HOward forums throws up some useful info. So I need to Obex 'push' the file to phone rather than just send it.
I tried Thin Air but had no joy. It successfully sends the .jar file to the 6230 but does so in exactly the same way as normal OS X Bluetooth File Transfer. Ie end result is that the file is transferred, but the java game is not installed and the .jar not recognsied.
So frustrating because Phone Director would be the answer to my prayers but for the lack of a G4 and Panther!
Do you reckon it's worth trying Phone Director on a G3 OS 10.2.8, or are minimum system requirements to be treated as gospel?