Yup, I agree it frightens casual users away. But I do not believe it is due to overly technical content but poor organization of things and "cheap", unelegant design. I think it is not right to turn possible community members away by creating too big gap between a page "for dummies" like tableteer and ubergeek maemo.org. This gap may be too big for many people to make a jump.

If you take itTalk for example, it is a place where both newbies and developers can coexist peacefully. And both sides of community win on this cooperation.