Support legacy iPhone users

Question

Now that iPhone SDK 4.0 is available for download, and iOS 4.0 will be available for consumers shortly, does it make sense to start using the new features available in the 4

Answer 1

In my opinion, if you can wait a few months to allow for people to transition into 4.0, then hold off a bit, otherwise just go ahead with the 4.0 features.

Based on my previous years stats, it took over a year for 2.0->3.0 upgrades to happen, but it was mainly the iPod touch users since Apple was charging $10 for it.

I would expect that the 4.0 adoption rate will be much quicker around, but keep in mind that the first gen iPhones/IPods aren't getting a 4.0 upgrade.