Open Source
GPL vs Invention rights, aka New employee fear of asking the wrong questions vs. continuing open source projects... I don't have an answer. Just this sort of uneasy feeling.
Just a quick "hello" to the Ogg family (Vorbis, Theora, etc), and other reasons to not say "MP3" player anymore...
Increasingly, I feel like being a good, responsible Java developer no longer means merely being able to write solid code in Java, but rather increasingly it means knowing when *not* to program in Java. And that's a lot more work.