LTC is a successful pump but I don't see the value in it and then there is a simple risk of a big slip as BTC becomes real world useful or as PPC becomes seen as a real hedge against BTC. Why would a merchant want to bother with LTC when they can just accept BTC? What functional advantage does LTC have - novelty value aside?
Faster confirmation and better suited for micropayments because there's a bit more totalLTC than BTC.
That said the timing of these posts are just to try and pump PPC and LTC. The alt-coin market has been greatly diminished by the rise in difficulty in mining, the pump and dumps, and the pump and dump scam coins.
PPC is 6 months to a year away from being put on Gox. LTC probably wont make it on Gox until July or August at the earliest. By the time PPC is being discussed to be put on Gox it will have to compete with Netcoin which is hybrid POW/POS and I don't see PPC having an easy time winning that competition.
When Netcoin is released it's going to smash all release records for any coin. It's probably going to be over $1 in value the day it's released and will probably stay there because the initial investors will be long term investors. It's going to be a pump and dump proof coin.