This is great map for Minecraft PE for review any your texture pack. Here you can easy look at new blocks from new texture and understand do you like it or not. New blocks will not just line up, they will showed in some structures. I have never seen this idea before and I really recommend to open for you this map, when you try to find relevant texture pack for yourself.
developers: JPlaysPE, Twitter Account
screenshots of this map
Only for Minecraft Pocket Edition 1.2 + versions