here is the Android version and I made a tutorial how to run it on PC.
Instructions to Install and Use
Download the Bluestack Latest version from here and Install it
http://www.bluestacks.com/ Download the file posted in the end of this post and extract it somewhere
Double click on the "Cut the Rope v1.3.1 Final Android" file
so it will add the game into your app collection
Run the Bluestack and Click on the HOME button (the big button on the bottom)
and go to your App Store (My Apps) and find the Cut the rope game and run it.
NOTE:
if you want to change the app size
Click on the Settings (it's on the botton right corner) -> Change App Size -> Tick on
the "TABLET" under the "Choose App Size" for "Cut the Rope Application"
NOTE: Bluestack consumes the bandwidth a bit more, it seems it downloads something with 20kBps sometimes.
I have noticed the Texture quality is quite low in Android version but it's not apparent in windowed mode but in fullscreen mode