Anyone know what's user-replaceable on new iMac's?

[YsoSerious]

Is this thing built like the rMBP where the memory and hard drive are not user-replaceable?

 

[TrboMac]

The RAM is easily replaceable on the 27" models. You push a button then the plate releases. Not as easily or at all on the 21.5" models. Yet to be seen on that and the HD replacement. Have to wait for iFixit to get ahold of some, which shouldn't be long.

**Edit: Take a look at this thread too.