As I wrote the title of this blog post it sounded so bloody obvious, “in progress” does not mean “complete” but when you are submitting your app to Microsoft’s new App Hub, create.msdn.com it does not seem so obvious.
The submission process is a wizard which lets you “save and quit” at any point, if your app says it is “submission in progress” that simply means you haven’t completed the submission process, go back to the wizard, move all the way through to the end and press Submit.
Many thanks to Sleepy Daddy Software for pointing this out on the forums and saving me a many others a lot of time.