Hi all :-)A few days ago I wrote about a lot of issues with Mavericks I have.I had my system extremely unstable. That was because of some old stuff in Extra/modules I forget about. My fault. I had many applications that wasn't worked properly. With DP2 all of them works back :-) +developers add Mavericks support to their apps (like the last version of parallels, and little snitch nightly builds). Multi-monitor support is a great feature and DP2 fix small but annoying bugs it had at start.Now I use Mavericks DP2 as my main system, and have not (almost) problem with it.