Well difficulty just jumped! I was making $2.36 a day now $1.98... But last time it was from $1.27 to $0.95... BTC price on MT Gox $1167 and holding at present. 9x Erupters at 3024...
Looking at the latest network speeds we just had a huge jump today in network hash power from about 5 to 7.7 PH's. Be prepared for a large difficulty adjustment in 10 days.
Where has such an increase come from? 2.5+ PH in less than a day?
Dunno, I know Asicminer has started shipping cubes, but that is one shit-load of cubes to generate 2.5 PH. Maybe some new private player just came online with a large mining operation.
I think its the beginning of the end for the hobbyists to get into mining, unless you have millions to spend.