I think this thread is the most looked at thread on a discussion board for me in the past ten years.
I'm biting my nails waiting for some news, because I just REALLY don't want to pay full price for old hardware.
While it IS possible they will abandon the desktop, it's not likely, because of people like me that HAVE to have a Mac for iOS development, but also need screen real estate for design/photo work.
I COULD get a MBP + thunderbolt display, but honestly I can't justify that expense.
my answer:
Something like this?

I think its what Cook want we to do.



,
but at this stage would even better to take a quad mini for Osx work
and
microsoft machine for games .
This if Cook doesn't discontinue LED Cinema Displays too
making the useless TB (due to the non sense decisions of both Apple and Intel to
make thunderbolt crippled and expensive ) the only one available .
Would be soo good to see iMacs after 2009 with no Target display mode being opened
for non TB devices.
But you wanna force us to wait..and buy notebooks year after year...so ZERO CHANCES.
Seriously Apple's board..are you serious?All the point of strenght you have are
just killed by yourself?For what?Money?Are you serious?Do you know how many money
you could do it opening the Target Display mode?
Wanna exit desktops?ok..then :
1.Just say it ,
2.Set Free the Thunderbolt and make Gpu external docks happen or even better release the yours!
But..Apple..doesn't listen..the sad wallets left outside.
Wanna an Imac?Pick an Iphone 5 ,an Ipad and magnifyng lenses,one for 21 and one for 27.. .
Apple would sell the lens too because as it is now seems very deaf and blind.