I've done some editing on some portraits and I'm having trouble with one effect. I did some painting in photoshop with a black brush on opacity 40%. The edit looks fine on my macbook screen, and on an intel screen as well. But when I view it on my iphone, I can totally see the edit. Furthermore, the whole photo looks to be brightened. I burned the backround because I didn't like it, and it appears bright on my phone, and just the way I want it on both aforementioned laptops. I'm going to print it later today to see if it comes out in the print, but I'm just wondering if anyone has ran into this issue before. The image in question is posted below - there as some selective darkening (opaque black brush) around the top of her hair.
EDIT: I use an iPhone 3G - I just had a look at the same photo on my friends iPhone 4 and it looks fine. Must be that generation I guess.