Clyde has announced Version 7 of GSAK (Geocaching Swiss Army Knife), but it is no longer free to registered users.
Registered users probably got the same email I did, but for those that didn't and are interested, here are a couple of links:
Link to GSAK.
New features in V7.
I think every user of GSAK agrees that it is a great tool, but $15 for the upgrade seems steep...