I've frequented xda-developer quiet a bit, but never registered because I didn't feel I had much to contribute, given the array of knowledge from some of the guys here. Respect
Anyways, back on topic:
I found a YouTube video of someone showcasing the latest EverVolv ROM running ICS on an Evo 4G (OG).
Just flashed it myself and so far everything seems to work fine. Android version is 4.0.3. The person has links to the ROM and Google Apps available in the description section of the video. Unfortunately, I don't have enough posts to post outside links so here goes...
-Go to YouTube.com
-Search for "ICE CREAM SANDWICH ANDROID 4.0.3 ROM FOR EVO 4G".
-Click on the video uploaded by username "MrblueEVO4g"
-Click "Show More" underneath the video where the description is.
Hope this helped...