I hate to say it but your request makes you sound lazy. Most of it is over my head to, but you can always just do a search for your very specific topic of hdmi mirroring.
I will say that we have lost a few dev's because of the locked nature of our bootloader, however I personally remain hopeful that the Canadian version (or international version?) if/when released may have a key to unlocking the bootloader.
There are themes, and one "rom". I have seen a hulu workaround, and some apk's just for our phone.
Currently: Verizon Galaxy Nexus, bootloader unlocked
Old: 4 captivates due to gps/quality issues
3 Atrix's (my third one due to hardware malfunctions on previous two) with third core enabled, bootloader unlocked, gingerbread + tweaks