Some of the issues that folks had with 4 were very similar to 3 in it's early days, check the archives and you will see that this was the case.
When 4 was announced I can tell you that I did not think I would have much use for it, but once it was lanuched I decided to give it a try and although buggy
in the beginning I found myself playing it more than and more. Having played the shat' out of 3 it was and is a nice change of pace. Plus there have been some great mods made for the PTO.
Having said that I look forward to the continued work on the ATO side of things and 3 is still on the desktop and I look forward to getting back to that theatre eventually
RDP