The LG Rumor Touch is showing up on the "pay as you go" phone services from Virgin. Originally Scanlife supported this device from getscanlife.com. But now their autodetection identifies the phone as an LG LN510 but sends you to an invalid page. So I went and found the local of the java files on their website, inserted it into the phone browser and it installed correctly.
Text this URL to your cell phone.
Click on the URL in the text and open the browser. It will then download and install. Run the application and click on any QR code.