In other words...
-Poorly implemented Copy and Paste (Check)
-Low framerate, ****** video recording (Check)
-Poorly implemented MMS (Check)
-Battery draining, resource hogging background apps (Check)
I appreciate the attempt and have jailbroken every iPhone version, but the items you've mentioned are like many other smartphones: the feature is added to impress some geeks with your spec list, but they aren't implemented well.
These last two I do give you as an actual benefit, but the setup needs to be slicker. For starters, folder and icon organization needs to have an option to be done via the iTunes to make it quick and simple
-Awesome themes and customization (Check)
-Folders to organize so that you don't have a 9 page jumble of random apps (Check)