The secret to Palm Pre dev mode lies in the Konami code
We couldn't believe it either, but as it turns out, from the launcher screen of your Pre, simply type in the phrase "upupdowndownleftrightleftrightbastart" -- which if you parse with spacing might be more easily recognizable as the infamous Contra / Konami code (look it up) -- and up comes a hidden app called "Developer Mode Enabler." Looks like it was discovered via the leaked ROM from earlier this evening. It's apparently used to connect a Pre to a machine running Palm's Mojo SDK for webOS, and we have confirmed its legitimacy. In fact, if you want proof and you don't have a Pre of your own, head on after the break for a video we put together, just for you.
[Thanks to everyone who sent this in!]