If you own the digital rights to your book, then you can publish your book/s on the iPad. You don’t have to be published through big name publishers to make it into the iBookstore. Exciting!
Here are your options so far (no doubt more are coming!):

Check this article for how to ensure you get distributed.
Price: FREE (but you will need to spend some time formatting)

Go to dtp.amazon.com. There are lots of help documents!
Price: FREE (but you will need to spend some time formatting – check out this podcast with Joshua Tallent from EBookArchitects for help.

Price:$2399 upwards (not for the faint-hearted!). I am mentioning this because I want to include the many ways you can get on the iPad but as I have posted before, self publishing should cost you nothing.

Price: $$$$ (depends on what kind of app you want, but certainly not free!)
Disclaimer: ok, so the iPad isn’t even published in Australia yet and I need to modify my own ebooks on Smashwords before they get on the iPad. I usually only post on what I have done myself, but this is so exciting, I thought you would like to know!
Please do leave any other ways to get published on the iPad in the comments.
Images: Flickr CC iBooks Myuibe, iPad and iPhone Roger Bits.
This is a cross-posting from Joanna Penn‘s The Creative Penn site.