***USE THIS AT YOUR OWN RISK***
***Worked for me but I can't say if it will work and/or cause problems on your device***
The info and basic methods and files for this post was found at:
[DEV] Netflix patch for Asus Transformer - xda-developers
Here is what I did:
1- You will need to have root access to your A100 Rooting Iconia A100 Made Easy
2- Install Netflix from the market, the app will work to browse movies etc but will fail when you try to play video.
3- Download the Netflix patch zip file to your computer or Tablet and extract it
4- Find the file libnvomx.so from the extracted zip files and replace the same file on your A100. The file is located in /system/lib/. Would be a good idea to rename the original first.
5- Reboot your A100
6- Enjoy Netflix video
I have included the exact Netflix APK I am using in case any updated versions in the future break this fix. The version of Netflix is the one I installed directly from the Market a few days ago. If the version matches, just install it from the Market. Either way, I would try installing from the Market first, if that doesn't work, uninstall, then install the APK I have attached.
Version of Netflix Attached below is: Version 1.3.0, Build 246, July 20, 2011