Best way to notify users of an update for a non-market app?

[xinyue]

I'm making a simple bus timetable app for my workplace and people are interested, but I don't want to be mass emailing everyone for simple updates. Right now I'm looking at having an XML file with the latest version info and parsing it on startup then just showing an alertdialog to update but, I can't get my head around getting SAX to work, I might look at the DOM parser but both seem like an overly complicated way to get a single value.Literally, this is all the XML contains:\[code\]<newversion>1.2</newversion>\[/code\]Is there another way?Thanks.