I can't give you any advice on the i900, but I have a Samsung Z510, and I absolutely love it. I've had it since it was a brand new model, I'm not sure what year exactly they came out, I think it was 2006. But it's worked from when I got it without ONE single issue. It's by far the greatest cell I've ever had. I will never buy another brand of mobile phone ever again! LONG LIVE SAMSUNG!
