I figure everyone knew that iBooks was available, but I just want to make sure. You can download iBooks now (if you have a US iTunes account).
From the Wattpad press release:
Wattpad, the world’s most popular ebook community, today announces immediate availability of its popular mobile application for the Apple iPad.
Wattpad for iPad is specifically optimized by making full use of the iPad’s large screen. Due to iPad’s larger form factor, Wattpad’s iPhone application is completely redesigned for the iPad in order to fully take advantage of the larger screen and enhanced interface.
As for B&N, The Wall Street Journal is reporting:
When the iPad went on sale this morning, Apple’s own iBooks store had nothing to fear from Barnes & Noble, the country’s largest bookseller — because Barnes & Noble’s iPad app isn’t yet available on Apple’s App store.
“We don’t have an exact date, but it will be there within the next two weeks,” said William Lynch, the new chief executive of Barnes & Noble. “Apple certifies all apps, so it’s not totally in our control.”