The aptly-named “WebOS Quick Install” from our very own Jason Robitaille. It’s a simple desktop Java-based app that you can download and install on a Mac, PC or Linux machine. First, install the webOS SDK (Update, version 1.1 has just been released and it uses the Recovery ROM – take a quick look at the notes on the linked post), then you just need to put your Pre into Developer Mode and then run the app on your desktop (Mac users note the small caveat in the readme file). You can drag and drop files downloaded from our Homebrew Apps forum into the app, click install, and you. are. done.

via Installing Homebrew Apps: Desktop Drag ‘n Drop, On-Device too! | PreCentral.net.

There’s a second way to install Pre apps in there as well called filecoaster…