Does the payout from cpumining depend on your CPU's power? Will I still be able to get 150 GRC per day if I don't have Core i5/i7 ?
We're close to being able to go live with cpumining; I think we should shoot for Saturday afternoon to go live.
You can earn up to 150grc per day per single host machine that is CPU+BOINC mining (btw, we have no intention of ever changing that, so for the bean counters, the maximum Gridcoin minted coins are 150*576 per day for the GPU users and 150*576 per day for the CPU users (of course, decreasing over the standard schedule); and we will never devalue gridcoin further than that as we want a high and stable exchange value).
Yes, as soon as we reach ~128 cpuminers, competition will start automatically and it will be important for you to earn high boinc credits in order to receive 150grc per day (since you will be in the cpu pool competing by boinc avg credits).
Good luck,
Grid