Avantgo is a great resource for PDA users. It allows you to download a stripped down version of webpages to PDAs for reading when you're not online. There are thousands of pages that produce Avantgo compatable pages for download, and you can also use it to download other pages which it will covert for reading on a PDA.
I don't use it much (my PDA is very old) but will occasionally download a few pages if I know I'm going to be away from the computer for a while and want to have something available to me (usually a newspage).
Having ENWorld available in an Avantgo compatable format would be an excellent resource.