Hey everyone, this is my first post. Really like the support here for the galaxy and I too hope that we get an official 2.1 firmware upgrade in the future. Anyway, I bought my phone (Anycall I7500H model) with i7500zhii4 firmware and csc i7500tgyii4. I flashed in IK4 last night, but after reading the posts regarding battery life from IK5 and L3, I'm wondering if I should go the extra mile and flash one of those into my phone instead. Who here is a former IK4 to either IK5 or L3 user, and what's the verdict?