I just installed Netbeans 6.5beta - it reused all my configuration from M1 and 6.0 final without any problems. The built-in SQL editor was significantly improved. It looks not only more decent but comes with the following functionality:
- Pagination in the result set
- SQL history - somehow similar to "local history". It comes with execution date etc. It's useful
- Auto completion: This one is prevents you from misspelling column and table names. It seems, however, not to know the SQL-commands yet - it operates only on the meta data...