Yes, a lot of the details of these posts are aimed at other Hive programmers, so most readers are going to find it hard going.

But to summarize it a bit, we're mostly testing/fixing/benchmarking the first HAF-based applications. A lot of work, but so far it's going well. The potential benefits of HAF include 1) lower cost nodes (as we move to the goal of allowing anyone to cheaply operate their own Hive server) that can handle more users and 2) making Hive-based apps faster and easier to develop.