Hello Siapi, and welcome :-) Here's a canonical welcome message for you; I look forward to seeing the latest installation of your work.
Welcome to the One Laptop per Child wiki. Please make yourself at home; read through the Table of Contents and FAQ, and take a look around. If you need a general wiki-tutorial, Wikieducator has some excellent ones.
Some possible pages of interest:
Check your preferences and be sure you verify your email address and turn on email notification if you'd like it -- you can find out when your talk page, or any page on your watchlist, is modified. You may want to upload a photo or information about yourself to your userpage (examples: 1, 2).
Some open tasks:
- Edit Patrol: recent changes, new pages
- General Cleanup: Category:cleanup
- Expand Articles: Category:stub
- Translation: Localization
Feel free to leave me a note on my talk page if you have further questions or need help finding your way around.