I'm using the standard commandline client (under OSX, in case this matters).
I've read in some threads that it is smart enough to pregenerate 100+ addresses to be used in future when you ask them, so that if you backup an earlier wallet, the future private keys are not lost.
This would be cool, but how do I check it is really true?
Every time I "get a new address", it seemed to me it took enough time to suspect it was generating it on the fly, not using it from a pregenerated pool. Maybe it was slow for other reasons, though, and that's why I'd like to check somehow.