Reading books on a cellphone

Have you ever tried reading a pdf book on a cellphone? It's truly an off-putting and frustrating experience: you are always trying to adjust the size of the text, scrolling from side-to-side and so on. Yet I have persisted; one of the things I want to do is read books on a cellphone-- there are often situations when I am waiting for someone or something or even when I'm so into a book that I 'can't put it down'.

Well, one of my cellphones is an android phone and, although pdf's are still a pain, I have discovered epub files and some really cool readers for them (one is even called Cool Reader). The problem is that most books are in pdf format. Enter Calibre, a linux program that does a good job of converting from pdf to epub format! I downloaded and installed Calibre via synaptic and have been converting my pdf books and reading them comfortably on my phone since then. Pretty cool.