After the gpu miner apparent failure, it seems that difficulty is kinda stagnated.
"blocks" : 147833, "difficulty" : 9.85310471,
"blocks" : 147834, "difficulty" : 9.85307074,
"blocks" : 147837, "difficulty" : 9.85310775,
"blocks" : 147838, "difficulty" : 9.85310000,
"blocks" : 147839, "difficulty" : 9.85312480,
"blocks" : 147841, "difficulty" : 9.85307729,
"blocks" : 147843, "difficulty" : 9.85294372,
Even getting lower.