It seems like, one barrier to adoption for the mass market is how ugly and non-memorable addresses are. I know that on the back end they need to represent people's public keys, but it seems like it should be easy enough to hide that from the end user.  If the clients simply signed a document that said "this address may be aliased by this name", you could then have clients able to send money to the name not the address. You then have the clients verify that no one else has signed a document with that name to keep it unique. To support one name across multiple addresses, you can have that first address sign for other addresses, which could then sign for other addresses, etc.

That way, you could send money to something human readable rather than an unintelligible string of characters that is easily typoed or even maliciously altered.

Thoughts?