EDIT: As mentioned a few times elsewhere on this thread, the biggest barrier to encrypted email adoption is the network effect, ie. both ends need to be using it. That is the core problem we're trying to solve--making an email system that would be better than the rest even if it weren't encrypted, but that's the icing on the cake.
The reason it's 2012 and there's still no universal solution for encrypting email is that it's a hard problem. If you care about the security of your mail, you should use GPG.
We'll be posting more information about the whole thing soon, but if anyone has any questions I'm always happy to discuss what we're doing either by email (in my profile) or (at risk of derailing the thread) here.
EDIT: Also, Parley uses OpenPGP. People who are happy with their PGP/GPG setup should continue using it, but the goal is to create a compatible service which those people would feel comfortable recommending to less tech-savvy friends.
The fact that your code will (?) be opensourced, is a big +1 The fact that it's secure by design is a big +1
Count me in, and go defeat gmail, icloud, and all those monstrosities,... one user at a time !
We would eventually like to offer multiple options for server location, but that isn't feasible in the short term.
I know you preach encryption, but there is a lot that can still be subpoenad outside of the encrypted message payloads, such as login IP addresses, destination email adresses, frequency of messages, etc.
Hopefully, we'll get to it, but if another startup gets there first we'd be much obliged ;) In the meantime we will focus on the big problem that's already right in front of us; I would encourage anyone who needs to operate outside of US legal influence to use a different mailserver (perhaps their own) and manage their own PGP keys.
Are there any useful options that encrypt email?