As most folks know, we package KeePass Portable for portable use. We use the 1.0 (aka Classic) branch as it works on nearly all PCs. KeePass also has the "Professional Edition" (aka 2.0) branch which is .NET-based and, thus, won't work on most PCs you encounter in the wild.
A few people have asked about the 2.0 branch as it does have a few additional features while sacrificing compatibility with 3rd party builds like KeePass on Android phones, for example. I was thinking we could offer it as an option lower down on the KeePass page and identify it as KeePassProPortable AppID-wise to keep things straight, with the appropriate caveat that it won't work on most PCs out in the wild. In the same way we offer the Chrome beta builds now and will soon offer the Audacity Beta builds.
As we offer it to folks within the PortableApps.com Updater (when we enable adds with it), we can hide the Pro version and only offer the standard one, since it is fully portable while the Pro version is not. We'll be doing the same with the "Test" editions of Firefox and Thunderbird as well (the updater will show them when you are doing an app update if you have them installed, but not offer them if you're doing an app add).