We don't need more tools, we need tools that non-geeks can use. For example, ten years ago, I worked at a company with a policy to use PGP with Symantec PGP software installed on PCs. Even the engineers sill failed to use it regularly. On several occasions I had to use logmein because the other company's IT department was incapable of setting up PGP for their own users. Ten years later and the Ask Slashdot is how get someone to send them their public key. http://ask.slashdot.org/story/13/08/10/0028235/ask-slashdot-....
I only have 2 contacts that I can use PGP to communicate with. Usability is the issue. Unfortunately most GNU Projects have never excelled in this area. It's too bad Mozilla dropped support for Thunderbird. Tight integration with GnuPG + a Mozilla cloud Public key directory could have made mainstream PGP a reality.