In the meantime, I wish to report that 0.7.0 is running successfully with an H2 database backend, no more serialized java object files. No need to keep all blocks and transactions in memory anymore.
great, any ETA already?
First CfB should port the Asset Exchange bugfixes and new APIs to 0.6.0, and at the same time I plan to do some profiling and optimizations of 0.7.0 if needed, and then merge the 0.6.0 and 0.7.0 branches. I wrote most of the db code yesterday and today, and I am running it for the first time now. Let's see how many stack traces I find in the log tomorrow morning. Hope to have it ready for release by the end of the week.