The article makes use of straw-man argument by bring up VOIP apps. But the avoiding of mentioning a competing app seems reasonable. If there was a Zune store

The article makes use of straw-man argument by bring up VOIP apps. But the avoiding of mentioning a competing app seems reasonable. If there was a Zune store I don't think any would think it appropriate for apps to mention the iPod. The developer can always encourage people to visit their website, and provide more company/product history there.