After many test I managed to get Silk to work on a different OS. This worked on CM7 for Kindle Fire. If you get any errors please post.
Here is the link to the spreadsheet. Please check to see if your device is supported!
1. Download the pack here.
2. Use Root Explorer to copy the lib files to /system/lib set permissions the same as the others.
3. Install all of the .apks like you would side load.
4. Copy the com.amazon.cloud9-1.apk from /data/app to /system/app
5. Reboot and enjoy
Check out this post from theverge! Here!
Edit (7/8/2012): Removed dead download links. All installer seems to be lost forever. If anyone still has the file please PM me. There is now no more spreedsheet editing. Most devices are listed so check it out.
Edit (1/6/2012): Made and Uploaded Silk Installer. Please read the directions in a later post. This is my last post for this project but I will still support it if people have erorrs.
Edit (1/4/2012): Updated SilkPort with puneet_champ's apk. Also Please stop screwing around with the spreadsheet.
Edit (1/4/2012): Updated Silk Pack/Added new mirror. (Removed Account and Sync) and Cleaned the post.
Edit (1/4/2012) As suggested by Cobracat03 you could try OTARootKeeper to use Amazon Prime Videos. If you can login to your amazon account through the Account and Sync settings post your method here or PM me if you can't post.