I've ranted about this before, but seriously, this is what my Mac's Software Update is saying:
Note the message in the bottom left corner: Restart will be required.
Really? Why? What is so friggin' essential about Safari or iPhoto or AirPort Extreme (I'm using a wired connection here) that requires a full reboot of the operating system?
This is just developer laziness, or excessive caution.
I'm working here. Get it? I'M WORKING HERE!
I have multiple windows open, with just the right PDF documents displayed, and all the windows configured correctly. I have the right files open in my developer tools. Even with shortcuts like "Open recent ..." and Firefox's automatic tab re-opening (which Safari makes you do by hand, for some reason), having to restart, and then re-open and re-arrange everything is is a big interruption.
Now I understand the concept of the therapeutic reboot ... the reboot just to get the system back to a stable state after it's gotten all weird. But this isn't about that. This is just some stupid little software update.
So, Software Update, get over yourself, you annoying little twit.
Same to you, Windows Update.