In Steve's response to Gruber, I think I have an idea on how you could summarize his stance. "OK, I realize that by banning other development platforms, I real

In Steve's response to Gruber, I think I have an idea on how you could summarize his stance. "OK, I realize that by banning other development platforms, I realize I'm making that initial hurdle painful for those who aren't familiar with our preferred tools or languages. However, our tools/languages are always at the forefront. After reviewing Gruber's comments I'm well aware that it seems like a harsh move, but I want developers to bite the bullet and deal with the learning curve now rather than wait while everything else attempts to catch up to what we already offer." Steve's at least acknowledged that it was harsh. However, the main argument holds: If you want everything the platform has to offer - including optimal performance - you're going to have to use Apple's tools anyways. As a developer I myself think it was a very harsh move, but I'll also agree that using alternative development tools has a significant performance/feature trade-off right now. It's a significant learning curve. I think he's incredibly wary about user perception of not only the platform, but it's ecosystem of apps. The effect of banning alternative development platforms will probably have a minimum effect of the quality of the app ecosystem, but any negative is still negative to a notorious perfectionist who caters to the premium market.