The EVO can and does exceed 30fps, it is
not a hardware limitation.
For those of you who say you don't care, or the 30fps doesn't matter: It ABSOLUTELY does make a difference in scrolling, menus, browsing, and other day-to-day 2d applications.
HTC is lying if they maintain the fps limit is tied to HDMI, period.
PS I do not play games on mine, but the difference between the gimped mode (HtC kernel) and god mode (XDA kernel) is staggering in 2d.