I wonder if 2/4 on Pacific isn't the fishiest game ever. I played for a while yesterday, and while the cards never really ran my way (a few too many river beats), the players were terrible. VPIP was running at over 70 for a while, and most of the players were passive too (80/2, 70/8, that sort of thing). I was well down for a while until I took down a monster pot with AA (capped PF with 3 players and plenty of action right to the river). I ended up only about 12BB up, but I think that was an unlucky session overall.
iPoker is still running pretty cold for me. I don't think I will stick around after I finish the book bonus.