I recently installed iOS 6 (beta) on my iPhone 4. I was happy to see Skritter running without any issues.

Since iOS 6 has Facebook integration, why don't you guys integrate FB in your app?

We plan to do this when we can switch to requiring iOS 6. If the feature turns out to be useful, we might see if we can implement it earlier for those on iOS 6 without requiring it.

I've heard that among the many updated features moving to being requirements in the app store (like retina screens, iOs 6 etc.), apple might be phasing out the 3GS. Do you know anything about that? I'd hate for the Skritter app to stop supporting it! And I'm talking about a matter of years here, not just the next couple of months. I'd hoped to keep my 3GS until late 2013, but if Skritter might stop running on it, I don't know what to do!

Apple isn't phasing out the 3GS yet, iOS6 will be available on it, obviously not all features will be there: http://www.engadget.com/2012/07/17/apple-gives-iphone-3gs-owners-some-love-with-ios6-features/

Well, Skritter updates might stop running on the phone if we decided to start requiring iOS 6 features (and the 3GS couldn't run iOS 6), but we'll be hesitant to do this without a good reason. Even if we did switch, the old versions of the app would keep working.

Ok thanks you guys, that's good to hear :)

FWIW, it's generally quite easy to link into features from a newer OS while preserving support for an older one - we do that with OCR, which uses some OS4-specific frameworks but works within our still-OS3-compatible-though-not-for-very-much-longer app. You just have to make sure to weak-link with whatever new framework you're using so that the app won't die on startup if it's not found.