Sim City Inside The Sims - Russian Doll Effect?

Ant writes "According to Wired News: 'It was bound to happen. First there was SimCity. Then there was The Sims. And then came a series of highly successful expansion packs like Hot Date, Livin' Large, House Party and others. Now comes a fan-made plug-in that allows Sims characters to effectively play SimCity inside The Sims. The Sims franchise has gone meta.'"