Teknogods said you can now save and load games (not replays, but games) while playing. I already asked them about how to do that on their forum, but I'm going post this here too as well, in case someone figures out how to do this and will provide a helping hand to the others.
Since there is no save/load button in the menu, to my understanding there must be a certain command you enter or press something to do that. Honestly... I didn't try F2 =)
Any ideas?
Maybe you have to download a saved game?