Interesting. And i agree, thats annoying and i just wont do it normally. I cannot allow myself to be THAT aware of my battery levels haha.
I would just buy the 3500 seido, if they made a friggin nice case for it!! I have the seido active case and love it to death, but the case that fits the 3500 is fugly.
Go find the thread reviewing the Case-Mate Tough Case. Excellent case. Then, go find the thread where DrPheta has been modding cases to fit extended batteries. Shoot him a PM and ask how much to mod the Case-Mate tough case to fit the 3500 mAh Seidio.
You would need to ship him both products (Seidio 3500 & Case-Mate tough case). But his craftsmanship is good.