I’m currently in the airport waiting to board my flight from Seattle to San Jose, where tomorrow I’ll drive to Apple’s (NSDQ: AAPL) Cupertino headquarters to hear details on the iPhone’s software roadmap. Speculation has been rampant on what Apple will announce and what will be discussed. Will Apple release the iPhone’s software development kit that was expected out in February? Will third-party developers be able to start writing applications for the device? Will it only discuss details of the SDK, and announce a launch date at some point in the future? What enterprise features will be released? And, will we get more details from Steve Jobs on his negative opinions about Adobe’s (NSDQ: ADBE) Flash?

We’ll find out starting at 10 a.m. tomorrow live from Apple’s Town Hall.

One of the bigger themes that I’ll be watching for is on Apple’s business model for the iPhone. How open will they be to applications: will it be truly open or act simiarly to a carrier’s walled garden? Will applications be distributed through iTunes? Will Apple take a cut of the revenue from developers? Will it share it with carriers? Will it launch a mobile version of iTunes, so users can download applications over the air and on the go, or will everything be strictly side-loaded onto the phone?

What are you dying to learn?

• Jobs to Adobe: Flash Just Isn’t Good Enough For iPhone
• Rumors Surface On Apple’s SDK Plan; Sounds Similar To A Walled Garden