Apple has released the developer release of Lion. Apple has also reached out to the security community allowing researchers access to this release as well. The big question is how will Apple handle open debate related to the security of their products. It is a good first step and may be the first real indication that Apple is going to get serious about security after taking on board Alex Jones. This is very important if they plan to sell to the biggest buyer of computers, the government.
One other noticeable difference with Lion is services usually installed on server are included in Lion, the question is what will the pricing look like. Not to mention the upgrade path but this is really how Unix should be. We are really excited about full disk encryption XTS AES-128 which is a welcome change to FileVault. Various PGP mis-steps on the Mac platform has been well document when it comes to WDE. For most users an encrypted virtual disk is a viable option for critical files.