I was thinking about the “gold-to-silver” relation between Bitcoin and Litecoin and the relation between PPCoin and Yacoin is pretty similar. YACoin has a much faster transaction time, is targeted to CPU mining with Scrypt, and has probably also a higher coin supply. But it shares the Proof-of-Stake approach with PPC.
Perhaps YACoin, in case it doesn’t die fast, could be advertised like a micropayments-oriented PPC alternative, and PPC with its higher security as the currency for savings and higher-valued transactions?
It could also be a good idea to bring together the YAC and PPC communities, to share experiences and increase the attention of the altcoin community for both currencies.
Just an idea
(Disclaimer: I am not involved in YAC community. But I think until now it’s the most interesting PPC fork.)