I've just released the v0.9.0b containing 10 basic tutorials (including differential scrolling, stand alone executable, physics, sound/music, animation, visual FXs, ...), some code optimizations and a few bug fixes (mostly cross platform issues).
You can find the release here. It contains: sources, full doxygen documentation, external libraries, compiled dev librairies for linux/windows and the tutorials(sources+compiled exes for linux and windows).
In the coming days I'll add more and more information on this site about the tutorials and how to make your first steps with orx.
For now, you can run the tutorials (windows and linux versions available), read the fully commented code source, play with them and with the config files to get a grasp of the engine.
As you'll probably see, developping using orx is now far more easy than before as it is mostly data driven, ie. with the same code you can have really different results by only changing the config files (without having to recompile, and sometimes even without having to relaunch the program).
I honestly think that orx is one of the most easy to use open source 2D-oriented and portable engine out there. But, of course, it's always improvable, so feel free to post your comments on the forum! =)
Also for any question or suggestion, the forum is also the place to be!
I hope to hear from any of you soon, and I will get some sleep as for now! ;)
Thanks to Mochi and KroustyBat for the tutorial arts, resp. music+pixel arts and logo! =)