The one thing that annoyed many EVO users is that their HDMI port could only be used while watching video and viewing photos. Orrebmas at Android Central’s forums looks to do away with that with a limited time beta of FullHDMI, however, that’ll allow you to view and play anything you want on the big screen as it looks on your phone.
The catch? Of course there’s a catch. You must be rooted so that you can install the kernel it requires. Your ROM must also be Sense-based: no CyanogenMod support here, unfortunately. And as it’s a beta, things aren’t extremely smooth, we hear. If you’re OK with all of that, though, click this link to grab the .APK file and kernel you’ll need. [Android Central | Forums]