My buddy over at cyprich.com has released a basic version of touch for Windows.
You can find his blog post here and you can download it here.
I will admit that it is no where near as full featured as the Linux version of touch but it is better than nothing.
An easy way to install this utility since it comes with no installer is to use this command from the folder: "copy touch.exe %windir%".
Now when ever you need to reach out and touch something you need to only type the command.