The iPhone SDK has been out for couple of weeks now and I’ve been using it to develop an application for my work as a technology demonstrator. My experience thus far has been largely positive. I wasn’t surprised by how well-made the SDK is, even at this beta stage. The amount of work involved in releasing any SDK, let alone one that is so tightly scrutinized, cannot be underestimated.Consider that I am learning three new things simultaneously: programming in Objective-C, learning how to use Xcode, and what is available in the iPhone SDK, I am going to describe the whole experience instead of just confined to the SDK…