So.....with my puny 12 Gh/s rig I might as well forget P2Pool right? Expect share is somewhere around 4 days right now and payout per block is BTC0.00143. So that's something like BTC0.00143 every 4 days? Am I reading this right?
I would not put that little hashrate on p2pool. You'll variance will be wildly extreme.
"Wildly extreme" meaning your current estimated $2/day earnings will end up being $0 on a lot of days (and well above $2 on some other days)? How does that even matter to anyone?
The satisfaction of seeing a reward, even small, is what makes mining worth while. With a share difficulty now at 888k, your odds of getting a share with 12gh/s is very very low.
If you want steady, although small income, point it to a large pool like BTCGuild.
M