Note: Will be at the Bitcoin Conference Nov 30th
http://bitcoinexpo.co.uk/
"Hi John,
thanks for your email
It is our long term plan to implement also many types of altcoins, PPC would be in our first batch together with Litecoin and Feathercoin. However this is not a simple task as many altcoin clients do not support .multi signature wallets.
THerefore, in the future, we would also be contacting people from the community to implement certain features and functionalities into the altcoin clients so that our service would be supported.
Thanks alot
Martin Albert"