The coins can be mined after the mainnet is live or after a specific block number?
As soon as the Mainnet is live you will be able to mine the real NIM. No pre mining.
When do you expect to activate mainnet?
In December, you can check our roadmap in our Webpage
In December. I will make a note of that. When you said its so easy, your mom could mine (according to the front page), that would mean you could mine CPU only??? I couldn't imagine my mom mining with a full rig (multiple GPUs) hooked up to her computer.
#Tapcoin