I updated my Sidejacking tools Hamster and Ferret. You can get them from the site http://hamster.erratasec.com (or, if DNS hasn't propagated yet, you can grab a zip or tar from the main site).
Biggest change is that the tools now work on Linux and Mac OS X. Previously, Ferret was cross platform but Hamster was stuck on Windows. Hamster was written to be mostly portable, but I never got around to fixing the last few bugs on Linux.
Another change is that you can launch Ferret directly from within Hamster. Just tell Hamster what Interface you want to sniff, and it will go off and do it. Kinda makes you forget that Ferret exists. You also get status updates in the screen so you can keep track of how many packets you've captured (so that you know that it's actually working).