The Best iOS 4-Ready Apps So Far
We all know that the iPhone 4 launches this coming Thursday. But on Monday, current iPhone users get an early treat in the form of iOS 4, the new iPhone operating system (formerly known as iPhone OS 4). It comes with several enhancements …
Context & Ripple Effects
The roundup lands between two fixed dates on Apple's calendar: the April preview of iPhone OS 4.0 set expectations for multitasking and other enhancements, and the iTunes 9.2 release on June 16 laid the desktop-side groundwork for the upgrade. With iOS 4 reaching existing iPhone users Monday and the iPhone 4 following Thursday, developers are racing to be visibly 'ready' at the moment the update hits.
Why it matters: a free OS update to the whole installed base resets the App Store's competitive order overnight — apps rebuilt for the new system get a discoverability window that laggards forfeit.
First-order effects
- Developers whose apps are updated for iOS 4 by Monday capture early visibility in a refreshed store while existing iPhone users install the OS days before any new hardware arrives.
- Apps that ship unprepared face immediate user complaints over crashes or missing multitasking behavior once the installed base upgrades en masse.
Second-order effects
- Competing app makers are forced into a same-week update cycle to match rivals' iOS 4-ready positioning, compressing QA timelines across the developer ecosystem.
- Accessory and peripheral makers whose products depend on app-level compatibility must re-certify against the new OS or risk breaking working setups for upgraders.
Third-order effects
- If the pattern holds — software shipped to old devices just before new ones — each iPhone launch becomes an installed-base-wide app upgrade event, making OS readiness a recurring competitive gate for developers rather than a one-time chore.
The trend: Apple's cadence of delivering major iOS updates to existing iPhones ahead of new hardware turns every launch week into an app-readiness race for the entire developer base.