Flubba released another unofficial version of PocketNES yesterday. The changes in this version:

v8U9 (FluBBa)
Fixed sprites to background priority.
Fixed sprites animation with CHR switching (SMB3).
Also fixed PAL timing IRQ for mapper 69 (Mr. Gimmick).
Added mapper 93 (Fantazy Zone (J))
Added mapper 105 (Nintendo World Championship (U)) remember to disable CPU hack (for”Rad Racer”).
Added mapper 180 (Crazy Climber (J), no controller yet though).