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Bottom line is, instant transaction time isn't a feature of the coin, it needs 3 confirms like any other coins which means about 3 minutes but can go all the way up to an hour. It's a feature that was supposed to be part of the coin at some point but as a lot of other things this feature has never seen the light of day.
The 3 confirms is not part of the protocol. I can accept after 1 confirm, none, or 6 or 20. Many sites use 6, see
http://bitcoin.stackexchange.com/questions/1170/why-is-6-the-number-of-confirms-that-is-considered-secure. The six doesn't translate easily to other coins. For instance, Paycoin doesn't use Proof-of-work, so a 51% attack of computing power is irrelevant. You're making a bunch of incorrect assumptions here.
I agree, wasn't saying it was part of the protocol but I agree I could have been more precise. Didn't want to get into spendable/unconfirmed, it was hard enough to get him to "accept" that Paycoin didn't have instant transaction without burying the explanation under more technicalities.