Late signup for SPNJ2BB. I'm also signed up for D/CBB. That's worked out well the time I tried it, as did the genteensybang and the gabriel big bang which I missed this year. I have done spncinema, but I don't think my talents are thusly suited. I could not get a story for the first time I signed up for SPNJ2BB. I don't think it was clear what time signup started. I'll set an alarm for it, or take time off work!
I hope I have better luck this year.
What other challenges/exchanges have you signed up for? I just recently learnt of the springfling. That seems sweet.