Well, block payments just dropped below 11 and difficulty passed 9.54
It's amazing how much a software update and better parameters can get you.
On that note, I'm starting to think the chains/day measurement is becoming less accurate. Either that or I've been quite unlucky.
It seems to not be accurate for me - I haven't gotten any blocks since the 25th (other than an orphan on the 25th) on my desktop though so I feel it's hard to tell. Then again my sister got three blocks on saturday with the same cpu... It seems like it's a rough average that was accurate when it was added but is slowly becoming less useful for judging how often you might get a block from my experiences.