Sup dudes and dudettes, I've been having a look and the new babies appear to be developing quite nicely -- having been through this before, I've thrown them into 12/12 light to begin the flowering process as soon as they had about 5 sets of leaves.
The next step in flowering is sexing the plants -- something that is key to successful bud growth and development.
If you look closely, you can see the fine white filaments coming out of a couple of verrrrry small pistils at the juncture, and while they may be hard to see, to someone growing with unknown seeds, it's a HUGE RELIEF:
Once you have determined that the plants are females you can start the flowering process in earnest!
I found a nice thread on the Grasscity Forums discussing the process.