Keeping tabs on interesting software can be a pain, sometimes. But here goes:

RSS Stuff

Mac OS X Stuff

Palm Goodies

Real Wi-Fi Hacking

This guy (who is being Slashdotted even as I type this) has built a mini Linux distribution for the latest Linksys 802.11g router/access point. It's essentially a bunch of extra utilities to run atop the existing kernel, and installs on its RAM disk. Now that's some really interesting stuff.