Does it feel like sometimes there's nothing the N900 or the Maemo community can't do if they put their mind to it?
Full WebOS games running on the device without the need for the WebOS Operating System (OS) loaded on the phone. Javispedro seems to be the man that can. Here are some of the reasons that this is possible:
The Palm Pre has a OMAP3430
The Palm Pre has a PowerVR SGX and OpenGL ES 2.0 libs
The Palm Pre is running GNU/Linux
The official way to code native apps in the Palm Pre is using SDL 1.2, which has a standard interface and Palm has released their modifications in compliance to the LGPL.