Great news, folks! It looks like the firmware update to the EVO 4G that rolled out this week has removed the 30fps limit that was said to be imposed because of the HDMI port.
Engadget have confirmed that the update does indeed remove the limitation, with their phone hitting 52 fps in benchmarks.
The update also fixes the calendar event edit issue, an issue with multiple Gmail accounts that broke with the Froyo update, and a reboot problem caused by the GPS.
So, if you haven’t already updated your device, your fast running out of excuses to do so.