I've choosed Appcelerator Titanium Desktop for developing my first cross-platform application, based on some research on the web. The problem is that Appcelerator stopped supporting it but released it as open source to the community and now you're on your own. There seems that there are many continuing with the project. I'm not sure if I need to download Titanium Studio, Titanium Developer or Titanium Desktop SDK. What's each package for and which one do I need? Documentation on the website is not clear enough.
Titanium Desktop has been taken over and renamed to TideSDK.