As owner of old PIGs I feel quite unconfortable that new block reward is 5x times of old one. That way inflation will kill value of my coins :-((
That's probably the best way. And no, it will increase the value of you coins as the alternative would be so indecent that it would scare away today's miners.
When Lime tried to do the same thing a few days ago people kept mining on the old chain because the difficulty was lower and reward the same. That wasn't anywhere near as smooth as the Pigcoin upgrade we saw yesterday!
I remember I could easily solomine PIG just a few months ago.. I wouldn't have the patience doing that on a 40GH/s net

Ok, should I be worried to mine old PIG till block 62.500 ? Tnx.