The Dwarven Forge Kickstarter has been an explosive success so far, and they’re well through $1,000,000 (US) raised at this point. With both a successful viral marketing campaign and excellent word of mouth amongst hobby enthusiests, they look poised to experience an even more successful run than their last kickstarter, which netted $1.9 (US) million.
Given their success and growing fanbase (along with the excellent quality of the terrain they produce for the price), we can hopefully expect far more of these projects from them in the future.
For now, the current project, centered around cavern and cave terrain (and compatible with the previous “Dungeon” tiles), can be backed at the link below. The site also features some pictures and video of their work so far.