2.2.1 vs 3.0

[Zathrak]

I'm sure I've overlooked this in the forums but what are the notable differences between SDK 2.2.1 and 3.0? I'm struggling developing on 3.0 and I am finding limited resources on tutorials for 3.0...I suppose I'll step down to 2.1. If I build with 2.2.1., will I be able have it run on 3.0 devices?

Thanks!

[NewiPhoneDeveloper]

Originally Posted by Zathrak

I'm sure I've overlooked this in the forums but what are the notable differences between SDK 2.2.1 and 3.0? I'm struggling developing on 3.0 and I am finding limited resources on tutorials for 3.0...I suppose I'll step down to 2.1. If I build with 2.2.1., will I be able have it run on 3.0 devices?

Thanks!

Well, there are lots of differences between iPhone OS 2.x and 3.0, but it's not like you have to learn a new coding language. It's more like having a whole bunch of new options, like the inApp purchasements or sending emails with attachments directly from your app, etc...

Check out the following link for major iPhone OS 3.0 features: Develop for iPhone OS 3.0 - iPhone Developer Program

If you build against 2.x, your app will certainly run on iPhone OS 3.0, but if you compile against 3.0, it won't run on 2.x.