i asked the same question in the general forum and i was told because this a low end phone. A low end phone with specs comparable to the Iphone 4 .. lol.
Love this phone, rooting and removing bloat definitely helps with the speed. I would love to see some devs get into this phone so we can get some fast ROMS running on it.. at least give us a proper forum to discuss in lol
edit: also, for some reason after rooting and removing a few system apps. I rebooted to see if eveything was good, i went through a series of random reboots and finally did a adb factory reset, plus hard factory reset I unrooted and rooted again. Seems now i have an issue with Gallery.apk I cannot view images on my sdcard. so of course i use QuckPic for gallery purposes. But i cannot set any picture as a wallpaper. I can only use live wallpaper. If i try to set a picture as wallpaper my phone locks up and reboots itself.
Current Phone: -- Epic 4G Touch (Flashed to Verizon)
ROM: -- SuperNexus ROM (thanks ktemp!)