I read e-books almost exclusively. At the moment, I am several chapters into Dan Brown's latest book.
I have been reading ebooks for years, first on my Palm devices then on my Windows machines, and to be honest, I'll probably never leave MS branded devices since I have so many .lit (Microsoft type) ebooks.
I personally don't care for dedicated ebook readers since they are usually about the same price as a PDA or smartphone, and they really only have the one function.
Def