Hi!

This is a really great list!

I feel it's missing mention of using (or not) *extended public keys*
from bip 32 to share multiple addresses in one go, so regular payments
can be done without asking for further addresses. Also since whoever has
the extended key can generate public keys this might help P2SH where the
public key is also needed.

>From the bip 32 document I see there can be a danger where finding a
child private key + extended public key would reveal the extended
private key for that branch, but likely the wallet itself is keeping the
private keys together anyways in that case...

Cheers!