GSoC has not started yet and we do not know anything about it at this point, so please do not create GSoC related topics. If we apply, we will post news about it.
All topics related to Google Summer of Code should go into this category.
We have an introduction document for new students here:
See in particular the section "Instructions for students", which will tell you how to get started.
Finally, please create a new post on the forum to introduce yourself, and if something is not clear in any of the documents above, please let us know!