please read ... and compare with istocks' fees ...

Microsoft seeks to woo developers with Windows 8 store
http://www.theregister.co.uk/2011/12/07/microsoft_developers_windows8_store/

"In addition, once an application has generated more than $25,000 worth of revenue, Microsoft will cut its commission from the industry standard 30 per cent to 20 per cent."

so, apple is doing more than fine taking a 30% cut, microsoft is even ok with just 20% .. istock instead is telling us 85% can barely sustain their biz ! ? what !