We now have a new page on NFC Forum Nokia Wiki that contains a few NFC Java code examples:
You can find a couple of examples that show how to use the PushRegistry to autolaunch MIDlets when touching a tag and also one that shows how to read NDEF tags UIDs.
The example MIDlets used in Wima 2007, Monaco, are also available at this location.
We are planning to update this NFC Java code example section and add more MIDlets as soon as we have them available, so please make sure you visit the page once in a while to see what else has been added.
Also, please feel free to ask questions about any of the MIDlets or suggest other examples that you would like us to provide.
We hope you will find the ones we have so far useful.