I'll second this request. I have been programming for years but know nothing about iphone development. The best I can tell so far is that you can use the official SDK but then somehow build and install the apps outside of the App Store (via Cydia or Installer when it comes out).
The other complication is that I run Linux (or windows sometimes), so I don't have a Mac to install the SDK on, so I'm not sure what the process is there either. More concrete questions I have are:
How do I install the SDK or an alternative to it in Linux?
How do I go about compiling (cross compile or compile on the iphone)?
Is there documentation on how you get things to show up on the springboard once I do get something compiled?
Is there API documentation for the iphone's GUI library (I'm assuming the headers and libraries for that are part of the SDK?)
What languages are supported?
etc
Thanks