Business Insider just published this list of products that are threatened by Apple's latest announcements at the WWDC on iOS6 and Moutain Lion.
It's not the first time Apple's done that if you remember : when launching iOS5, which included reading lists, Marco Amrent's, the founder of legacy solution Instapaper, reacted with an angry tweet. But then he thought about it for a while and wrote about the fact this could help him educate the market. And thefore could be good news.
Time will tell whether it's wishful thinking or not but the broader picture is the take-away about surviving in the appealling-but-dangerous App ecosystem. Apple is ideally positionned to understand which Apps are being the most useful and could the most benefit from being integrated in the OS. And make no mistake: unless these features are niche, Apple's track record shows they will mercilessly integrate them.
Does it mean we can't be successful with Apps anymore? Certainly not. But we need to think about things that Apple can't replicate: content (in the broader definition so including games) and communities are the first that come to mind.