For those who aren't familiar with it, Evas is a highly optimized, object-oriented canvas library with hardware acceleration options that is the graphical foundation of the E17 desktop environment. Evas works on many different platforms and backends, and as of today works on WebOS. If you're looking for an easy way to write SDL apps for the Pre, here's your answer.

More on Evas and other EFL libraries: Enlightenment Foundation Libraries - Wikipedia, the free encyclopedia

Demo video (and package):
:: xcomputerman.com :: Evas running on WebOS, Palm Pre

Beginner's tutorial (was written for X11, but changing to SDL is trivial and should be obvious):
rephorm.com