Building on the "export as html and host on a local Apache server", I signed up for Dropbox.com and do a text file output of the recipe and save it into the Dropbox folder on the desktop, which auto syncs it with their servers. You can get to it from anywhere, but it comes right up on the phone as a text file, since there's a handy Dropbox official app for Android. If you use a text file, you could make changes or notes.
Dropbox is also great for storing recipes of anything you bring places where people ask you how to make it. Just get their email address and mail it to them right out of the folder. I may have done that a few times with a cake recipe.