This was okay, but still only allowed one photo per email, and forced you to start out in the Photos app, and not Mail.
Although the attachment gripe has not been solved yet in iOS, you can now easily add multiple photos or videos into the body of your email, in the email itself.
Simply open a new email, and tap in the body of it.
You will get your usual pop-up for “Select | Copy | Paste“, and if you tap the right-arrow, you will get the new pop-up for “Insert Photo or Video“
Go ahead and choose your media from your various Camera Rolls or even Photo Stream. Done.
Simple, but so effective.