I was on another forum that was talking about Goggle adding 3d trees to Earth.
With My3g on the little icon appear when I went to the web page but when I clicked on the YouTube video is was grainy.
However, when I switched to wifi the video was perfect.
Here's the link, mods feel free to remove is not allowed to cross forum link.
http://www.iclarified.com/entry/index.php?enid=13014

I couldn't find anything about embedded files not working.

All apps are currently on for My3g