FYI -for you purists -NOT! :)

Here's an interesting sample library:
Rolfing Laid Back Vol 1
http://detunized.com/live_back_packs/#DTS009   (middle of the page)
In the description:
"A really rotten upright piano, totally out of tune, with all the keys disappeared."

I really like the clean sound of it... nice sampling just from the demos.
I guess we'll have to wait for that prepared piano addon complete with virtual pry bars, ball peen hammers and, well... everything.