Select an Open Source system or application and describe the features and capabilities

Select an Open Source system or application and describe the features and capabilities. How well does that system or application compare with other systems or applications?

The other two postings should be responses to two other student postings, and include substantive commentary on their answer (e.g., supplement with additional information and/or examples, provide a critique and/or counter examples, ask probing questions, etc.) of at least 100 words. Any reference material should be cited using APA format.