Under what cases will I get iWork or iLife? After looking at various models of Macs and looking at Apple's iLife and iWork pages, I'm more confused than where I started.

Originally, I thought that nothing - just Lion - came with a new Mac. But then I saw something here that says that iLife is a part of every new Mac.

So I thought. But then I saw this that said that iLife is not a part of Lion. Huh? Then, to add to my confusion, I saw this, that said that iWork does not come with a new Mac. Hmm. So after doing some research, I've arrived at these conclusions:


Apple really needs a central place to see what comes with a new Mac and what doesn't.
iWork is seperate from iLife, but both can be bought from the Mac App Store.
iLife comes with Lion.
Nothing comes with iOS.
I'm really confused.


So: Under what cases would I get iWork or iLife?

[example answer] You get iWork if you buy XYZ and iLife if you buy ABC. Both come on the Mac Pro, and none are on the iPad by default; however you can get iOS versions through the App Store for $41.34 each. You can buy them for $700 each on the MAS. The MacBook Air comes with iLife but not iWork; so does the MacBook Pro.
Every new Mac (MBP, iMac, Mac Mini, MacBook Air, Mac Pro) purchased from Apple comes preinstalled with 


the latest version of Mac OS X
the latest version of iLife
no iWork


Every new iDevice has:


the latest version of iOS
no iWork
no iLife


Every new copy of Lion has:


Lion
no iWork
no iLife