Gavin Andresen - 2010-11-21 14:04:25

@s{quotedtext} @s{quotedtext} The keypool IS used for coin-generation transactions.

And the way it is implemented, it should never throw away keys.  If I recall correctly, there is a very small chance if you lose power or bitcoin crashes a key from the keypool could be used twice.  But that has no bad effects, it is just very unusual.