I am very happy that FastMM5 is now available and also with the new licensing scheme. We plan to use it in our heavily threaded 64-bit http/socket servers. While I wouldn't have used it at all if it was GPL only, having a commercial offering at a reasonable price is actually more preferable because I like the idea of a properly maintained memory manager for our commercial products. There are plenty of free memory managers around for Delphi, that are barely maintained.