Still running good ol' .75. I can honestly say that I have no problems with it. No random reboots. No slowdowns (except when Viigo is downloading updates). Haven't done a battery pull in over a month. I don't ever check my available memory but I did for the purpose of this response and I'm at only 12.7 MB and still running strong. Battery lasts me a solid day under my normal usage. All in all, no complaints. I haven't seen the need to load any of the leaks.
I have been on a beta OS since they started dropping. I don't always upgrade immediately to the new one but it never lasts more than 48 hours before I install it.
I'm running .86 right now and I don't have many problems. Sometimes it gets extremely slow and I have to do a QuickPull, but I'm pretty content with it.
Not to say I'm not eagerly awaiting the new Official