wubbzy's main idea is that there should be a public database where you can upload simulations, objects, etc, like the Sp§repedia.
Which is totally unnecessary, seeing as the forum is partially meant for sharing your US2 stuff. Personally, a "Sandboxpedia" would get extremely messy, extremely fast, filling up with ridiculous garbage and trolling abominations, such as empty simulations galore.
EDIT: Never mind that. He's talking about adding a database of developer-created simulations+objects that you can access by downloading them. Also not necessary, since a whole simulation of Saturn, it's rings, AND it's moons is only about 230 KB, which is really small.
Everything else is random, probably false claims about RAM and memory storage.