2- O P2Pool CAN and SHOULD have more than 51% of the hashpower! That's it! If P2Pool owns, for example, 80%~100% of the hashpower, we will be much more safe!!!;
100% of the hashpower by single software solution is not a very good idea. Some bug or exploit can lead to a disaster.
Yes, it sounds good, but 100% is not healthy for ANY single entity.
i would love if you implement smart-mining within your pool. (means that your miners are building the block which they mine). i know eligius is working on something like that.
i dont have a problem with big smart-mining-pools

but i would stay at p2pool just because of its coolness-factor

Agreed! No single solution is healthy. A hope for a nice blend of solo miners, traditional pools, and smart pools. I'd like to see at least 10-12 pools that are competitive for the top. New versions of smart pools to run alongside P2Pool would be fantastic!