I am preparing a session about open source in Windows Phone development and I'd like to hear from the awesome #wpdev community! I am a real fan of open source in #wpdev and I admire people who invest their free time, energy and knowledge to make things easier for others. So, if you use open source in your apps, which ones are your favorite? Are there any that you add immediately after creating a new project?
The third question is optional. It should take around a minute to fill the survey. Do you know a good library that I forgot to add? Please mention it in the comments so I can quickly add it, or just write it down in "Others" if you use it regularly. Know a Windows Phone developer? Please let him or her know about the survey! Thanks!