These are my personal favorites - Simon and Garfunkel: Bookends (great classic album) - Supertramp: Breakfast in America (another one of my favorites) - Fleetwood Mac: Rumours (one of my favorites to work to) - The Flaming Lips: Yoshimi Battles the Pink Robots (not a classic, but great to work to)
My personal opinion on this post is that it does not fit on HN. I don't understand why this post would gratify any hacker's intellectual curiosity, therefore, this post is off-topic, and does not meet the standards of HN. It might be beneficial for you to read the Hacker News Guidelines. Here is the link: http://ycombinator.com/newsguidelines.html
I jailbreak all of my devices. Not only does jailbreaking allow you to customize your device in many awesome ways which Apple does not allow, but there are also some things jailbreaking provides you with the option to do, which make you more productive while on your device. It is also just plain fun having all the options jailbreaking gives you.
For me, the must have things you can get from jailbreaking, are SBSettings, Winterboard, Five Icon Springboard/dock, Mobile Terminal, and Lock Info.
These are all things I think are needed on every Apple device, jailbroken, and nonjailbroken.