SuperNet is a collective of approved cryptocurrencies which will share a single architecture, and from what I understand, the capitalisation of SuperNet will comprise of a percentage of the approved cryptocurrencies within it, mitigating the risks if one of the coins doesn't succeed. Hopefully there'll be a mechanism to prune off such coins.
This will help:
http://www.coinssource.com/supernets-coin-offering-raises-over-2000-bitcoins-hours/The good folks at CoinsSource did a better job of explaining it than I ever could.