Here's a p2pool I've set up: https://bitcointalk.org/index.php?topic=198756.0

Currently supporting BTC + LTC + BQC + FRK!

Fee: 1%

Tried these colours, even though it may be quite symbolic I don't think it works too well http://puu.sh/2P5Iu.png

How about something like this for the logo? Open to any suggestions.

Usually the store owner would accept a transaction with 0 or 1 confirmations, as there is a relatively low (however still present) risk of a double spend. It really depends on the amount of risk the store owner is willing to take. This risk will lower as the power of the bitcoin network increases.

Yes, once wallet says a balance is confirmed, that is 6 confirmations. However due to the nature of the blockchain, this could take any amount of time longer or shorter. It can be random, however the network will adjust (change difficulty) in order for the time of each confirmation to be around 10 minutes.

Thanks for your report, it was a very interesting read.

I'm developing a bitcoin powered advertising network. The name is secret for the moment

Got a 7950 running at around 600Mh/s. Very good card, great for gaming too