More effective memory management and CPU load handling optimization I am sure is on the list of things to do before release of the first commercial release version of TG2. The old Terragen had a memory Usage limit option in the "Advanced Tab" of the Render Settings where you could specify in Megabytes the maximum memory size of the render buffers; I really hope this will be returning to the finial release version.
From an "End User Frustration [EUF]" issue stand point is to do with some applications not releasing memory after they have finished with it the same can be true with applications not releasing CPU cycles after they have completed there use of them, the other area of concern would be memory leaks.
I am sure that TG2 is being tested for these problem areas but I raised them any way.
Oshyan you mentioned Mip-mapping, I was thinking about this the other day while reading another post which I believe was to do with a problem with instances in populations, where you have a high population density practically near the horizon where problems can arise with the perspective of these instances would mip-mapping if implemented be extended to populations as well as the prescribed case of image maps?
Regards to you.
Cyber-Angel