update-- A word of warning: It seems the cloud functionality is still expanding and it now actually works. This would be great, if it was possible to disable this function, but it is not and per default EVERY camera is accessible from the outside of your network when they know the device ID! Very VERY bad! A watchful reader made me aware of this fact, much gratitude!
If you decide to run the P2P intergrated firmware, but sure to realize what this means. Anyone in the world can watch your camera, I would advise to only use it if you can block/drop it with your firewall.
--update I have made a new post about firmware version 2.5.1.8 which was recently released. I will keep this post alive because there are a lot of valuable comments in here! If you upgraded, please comment in the newer post!