If you're referring to having two apps open side by side at the same time, then no iOS7 doesn't allow it. You're probably referring to the recent MS tablet commercials which like to point out this fact. In my experience, it's not really necessary anyway.
However, apps will have more background multi-tasking, however you're still limited to one app on your screen at a time. You will be able to quickly switch between open apps using the improved multi tasking gesture, which is improved from the current implementation.