Coblee has a point. The block reward decreasing so fast would anyone who jumps on to mine now the effective premine before others get interested. Already there is talk of an exchange, but the positive and interesting aspects of PPC coin aside, it does feel pump-and-dumpy.
Why not have the block reward decrease at a slower rate? The fast rate of decay feel like an accelerated and artificial creation of scarcity. Bitcoin gets the block having this december after 4 years, but PPC coin will do the same in a vastly shorter amount of time.
The focus should be development of a reliable and secure exchange of value that relies on minimal electricity input. Concerns over the fairness of initial distribution are a silly distraction. I feel the rate of decay in initial distribution is too slow by two or more orders of magnitude. The currency will likely disappear before it ever demonstrates anything resembling energy-efficiency.
On the contrary: perhaps you are right from the technical perspective, but I think a lot of people would agree that LTC is still around because it felt fair and felt fair for a long time (and still feels fair).
SolidCoin (and some others) despite putting up a hell of a fight, are more or less no longer.
If in 4 weeks the block reward is 2 coins, miners will already be long gone and coin dead. Sure you're counting on it being around just a short time, but it could be so short that nothing practical comes of it.